ambient air quality monitoring report for saldanha bay and ......this report evaluates data...

Ambient Air Quality Monitoring Report for Saldanha Bay and Vredenburg Sites July 2019

Prepared for

Saldanha Bay Municipality

SALDANHA BAY MUNICIPALITY

Ambient Air Quality Monitoring Report for Saldanha Bay and Vredenburg Sites : July 2019

EXECUTIVE SUMMARY

This report covers data from the Saldanha Bay and Vredenburg Air Quality Monitoring stations for July

2019. These stations have been commissioned and operated throughout the Saldanha Bay Municipality

Area by Argos Scientific Africa (Pty) Ltd.

There were no exceedances of any of the RSA Air Quality Standards during July 2019 at either of the

abovementioned sites.

The average data collection during July 2019 at the Saldanha Site for SO2, NOx and O3 was >99%.

The PM analyser has been sent to the suppliers for repair. The analyser was damaged by recurring

load-shedding instances earlier this year.

The average data collection during July 2019 at the Vredenburg Site was >99% for SO2, NOx and for

Ozone analysers.

Meteorological conditions for the month of July were characterised by moderate to strong winds from

the north easterly direction, with a north westerly bias. There was 4% occurrence of calm conditions.

.

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REPORT DETAILS

Reference AS1138\sbm\201907

Report Title Ambient Air Quality Monitoring Report for Saldanha Bay and Vredenburg Sites : July 2019

Date Submitted 12 August 2019

Client René Toesie

Saldanha Bay Municipality

Pick and Pay Centre

VREDENBURG

E-mail: [email protected]

Prepared by Lukas Tshehla

Argos Scientific SA

Unit 16 360 Business Park

8 Section Street

Paarden Eiland

Cape Town, 7405

Tel: +27 21 8343108

Email: [email protected]

Signed

Technical signatory Grant Ravenscroft

Signed:

Status Final

Notice

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TABLE OF CONTENTS

1 INTRODUCTION AND BACKGROUND .......................................................................................................... 5

1.1 SCOPE OF WORK ....................................................................................................................................... 5

1.2 PROJECT DESCRIPTION .............................................................................................................................. 5

2 GUIDELINES AND AIR QUALITY STANDARDS ........................................................................................... 6

3 METHODOLOGY ............................................................................................................................................. 6

3.1 AMBIENT AIR QUALITY ................................................................................................................................ 6

3.2 DATA CAPTURE ......................................................................................................................................... 6

4 RESULTS ........................................................................................................................................................ 7

4.1 AMBIENT AIR QUALITY TRENDS ................................................................................................................... 7

4.2 COMPLIANCE ........................................................................................................................................... 15

4.3 MEAN AND MAXIMUM CONCENTRATIONS .................................................................................................... 16

4.4 DIURNAL TRENDS..................................................................................................................................... 17

4.5 WIND AND POLLUTION ROSES ................................................................................................................... 19

5 CONCLUSIONS AND RECOMMENDATIONS.............................................................................................. 20

APPENDIX 1: SUMMARY TABLE OF HOURLY MEANS (SALDANHA) ... ERROR! BOOKMARK NOT DEFINED.

APPENDIX 2: SUMMARY TABLE OF HOURLY MEANS (VREDENBURG) ........................................................ 22

APPENDIX 3: MONITORING METHODOLOGIES ................................................................................................ 23

1. CONTINUOUS REAL TIME MONITORS .......................................................................................................... 23

2. QUALITY CONTROL REQUIREMENTS ........................................................................................................... 26

3. INSTRUMENT CALIBRATION AND FREQUENCY .............................................................................................. 26

4. DATA ACQUISITION REQUIREMENTS ........................................................................................................... 26

5. SITE SELECTION ...................................................................................................................................... 27

6. DATA MANAGEMENT ................................................................................................................................. 28

APPENDIX 4: QUALITY ASSURANCE STATEMENT .......................................................................................... 29

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1 INTRODUCTION AND BACKGROUND

1.1 SCOPE OF WORK

This project covers the communications, data processing and reporting for two Air Quality Monitoring

(AQM) Stations in the Saldanha Bay Municipality Area. Argos Scientific’s understanding of the scope of

work is as follows:

• Establish 3G communications from ambient air quality monitoring station loggers (PC with Linux

Operating System) via 2G/3G modem to a centralised server.

• Provide SIM cards for 2G/3G modems.

• Ensure communication support stations and server.

• Provide real-time access to raw data and validated data from SBM offices.

• Provide real-time downloading of raw data and validated data from SBM offices.

• Submission of monthly reports for each monitoring station, including data graphs, exceedance

graphs, meteorology, analysis and station status.

1.2 PROJECT DESCRIPTION

This report evaluates data collected from the Saldanha Bay and Vredenburg Air Quality Monitoring

Station. The Saldanha Bay station is located at 33° 0’ 3.99” S, 17° 56’ 41.68”E, to the north east of the

town and the Vredenburg station is located at 32°54'6.20"S, 17°59'31.94"E, to the east of the town.

These sites meet all the requirements as outlined in the US EPA’s “Quality Assurance Handbook for Air

Pollution Measurement Systems” and “SANS 1929” report.

Figure 1.2-1 Location of the Air Quality Monitoring Stations at Saldanha Bay & Vredenburg

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2 GUIDELINES AND AIR QUALITY STANDARDS

The National Department of Environmental Affairs (DEA) standards for common pollutants as listed in

the Government Gazette No.32816, published 24 July 2009, are listed in Table 2.1 below.

Table 1.2-1 National Ambient Air Quality Standards for SO2, NO2, O3, PM-10 and PM2.5

Pollutant SO2 SO2 NO2 O3 PM-10 PM-2.5

Period 10 minute 1 hour 1 hour 8 hour 1 day 1 day

RSA AQ Standard 191ppb 48ppb 106ppb 61ppb 75 µg/m3 40 µg/m3

3 METHODOLOGY

3.1 AMBIENT AIR QUALITY

Ambient concentrations of sulphur dioxide, oxides of nitrogen (NO, NO2 and NOX), ozone, and

particulates less than 10 µm in diameter (PM-10) are measured at the Saldanha Bay monitoring site

and Vredenburg monitoring site in accordance with the latest National Ambient Air Quality Standards

(as above) and SANS standard methods. Levels of these pollutants are presented graphically and in

table form in section 4 below.

3.2 DATA CAPTURE

Data is analysed for completeness against a required standard of 90% and presented in table form

below.

Table 3.2-1 Percentage Data Capture for Ambient Air Quality Pollutants in July 2019 at Saldanha Site

Pollutant SO2 NO2 O3 PM-10 PM-2.5

% Capture >99% >99% >99% **0% **0%

** Equipment damaged by load-shedding

Table 3.2-2 Percentage Data Capture for Ambient Air Quality Pollutants in July 2019 at Vredenburg Site

Pollutant SO2 NO2 O3 PM-10 PM-2.5

% Capture >99% >99% >99% 0%* 0%*

* Equipment out of commission due to vandalism

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4 RESULTS

4.1 AMBIENT AIR QUALITY TRENDS

A graphical summary of pollutants for July 2019 is provided in Figure 4.1.1– Figure 4.1.14 below. A

tabulated summary of results is attached as Appendix 1.

Figure 4.1-1 Daily Mean Hourly SO2 Concentrations at Saldanha Bay in July 2019

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Figure 4.1-2 Daily Maximum 10-minute SO2 Concentrations at Saldanha Bay in July 2019

Figure 4.1-3 Daily Maximum NO2 Concentrations at Saldanha Bay in July 2019

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Figure 4.1-4 Daily Mean Hourly NOX Concentrations at Saldanha Bay in July 2019

Figure 4.1-5 Daily Maximum Eight-hourly O3 Concentrations at Saldanha Bay in July2019

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Figure 4.1-6 Daily Mean PM-10 Concentrations at Saldanha Bay in July 2019 (Analyser Faulty)

Figure 4.1-7 Daily Mean PM-2.5 Concentrations at Saldanha Bay in July 2019 (Analyser Faulty)

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Figure 4.1-8 Daily Mean Hourly SO2 Concentrations at Vredenburg in July 2019

Figure 4.1-9 Daily Maximum 10-minute SO2 Concentrations at Vredenburg in July2019

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Figure 4.1-10 Daily Maximum NO2 Concentrations at Vredenburg in July 2019

Figure 4.1-11 Daily Mean Hourly NOX Concentrations at Vredenburg in July 2019

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Figure 4.1-12 Daily Maximum Eight-hourly O3 Concentrations at Vredenburg in July 2019

Figure 4.1-13 Daily Mean PM-10 Concentrations at Vredenburg in July 2019 (No Analyser Available)

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Figure 4.1-14 Daily Mean PM-2.5 Concentrations at Saldanha Bay in July 2019 (No Analyser Available)

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4.2 COMPLIANCE

Table 4.2-1 Compliance with National Ambient Air Quality Standards at Saldanha Site

Pollutant SO2 NO2 O3 PM-10 PM-25

Period 10

minute 10

minute 10

minute 10

minute 10

minute

Standard 191ppb - - - -

Exceedances 0 - - - -

Period 1 hour 1 hour 1 hour 1 hour 1 hour

Standard 350µg/m3 106ppb - - -

Exceedances 0 0 - - -

Period 1 day 1 day 8 hours 1 day 1 day

Standard 125µg/m3 - 61ppb 75µg/m3 40µg/m3

Exceedances 0 - 0 0 0

Table 4.2-2 Compliance with National Ambient Air Quality Standards at Vredenburg Site (No pollutants measured)

Pollutant SO2 NO2 O3 PM-10 PM-25

Period 10

minute 10

minute 10

minute 10

minute 10

minute

Standard 191ppb - - - -

Exceedances 0 - - - -

Period 1 hour 1 hour 1 hour 1 hour 1 hour

Standard 350µg/m3 106ppb - - -

Exceedances 0 0 - - -

Period 1 day 1 day 8 hours 1 day 1 day

Standard 125µg/m3 - 61ppb 75µg/m3 40µg/m3

Exceedances 0 - 0 0 0

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4.3 MEAN AND MAXIMUM CONCENTRATIONS

Table 4.3-1 Mean and Maximum Pollutant Concentrations during July 2019 at Saldanha Site

Pollutant Period SO2 NO2 O3 PM-10 PM-2.5

Unit: Ppb µg/m3

Mean Month 0 4 20 -* -*

Max. 1 hr 7 25 35 -* -*

Max 24 hr 1 11 32 -* -*

-* Insufficient data for statistics

Table 4.3-2 Mean and Maximum Pollutant Concentrations during July 2019 at Vredenburg Site

Pollutant Period SO2 NO2 O3 PM-10 PM-2.5

Unit: Ppb µg/m3

Mean Month 0 4 27 -* -*

Max. 1 hr 8 38 58 -* -*

Max 24 hr 2 11 53 -* -*

Note : * Insufficient data for statistics

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4.4 DIURNAL TRENDS

Diurnal trends of the ambient pollutants are only shown for those pollutants where overall data capture

was above 50%, which is considered representative enough for providing an indication of diurnal trends.

Figure 4.4-1 Diurnal Trend for Ambient Air Pollutants at Saldanha Bay in July 2019

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Figure 4.4-2 Diurnal Trend for Ambient Air Pollutants at Vredenburg in July 2019

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4.5 WIND AND POLLUTION ROSES

The wind rose for Saldanha Bay for July 2019 is shown below.

Figure 4.5-1 Wind Rose for Saldanha Bay for July 2019

There was no wind rose for Vredenburg for July 2019

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5 CONCLUSIONS AND RECOMMENDATIONS

There were no exceedances of any of the RSA Air Quality Standards during July 2019 at either of the

abovementioned sites.

The average data collection during July 2019 at the Saldanha Site for SO2, NOx and O3 was >99%.

The PM analyser has been sent to the suppliers for repair. The analyser was damaged by recurring

load-shedding instances earlier this year.

The average data collection during July 2019 at the Vredenburg Site was >99% for SO2, NOx and for

Ozone analysers.

Meteorological conditions for the month of July 2019 were characterised by moderate to strong winds

from the north easterly direction with a north westerly bias. There was 4% occurrence of calm conditions.

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APPENDIX 1: SUMMARY TABLE OF HOURLY MEANS (SALDANHA)

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AS1138 APPENDIX 1: SALDANHA BAY AMBIENT AIR QUALITY DATA - JULY 2019

SULPHUR DIOXIDE HOURLY MEAN CONCENTRATIONS - ppb

Start Hr 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Mean MaxDay

1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 02 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 03 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 04 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 05 0 0 0 0 0 0 0 0 1 1 0 0 3 1 0 0 0 0 0 0 0 0 0 0 0 36 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 07 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 08 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 09 0 0 0 0 0 0 0 0 0 0 0 0 4 1 0 0 0 0 0 0 0 0 0 0 0 4

10 0 0 0 0 0 0 0 0 0 3 4 1 0 0 0 0 1 1 1 1 1 0 0 0 1 411 1 1 0 0 0 1 2 3 4 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 412 0 0 0 0 0 0 0 2 1 0 0 0 0 0 - 0 0 0 0 0 0 0 0 1 0 213 0 0 0 0 0 0 0 0 0 1 1 1 1 0 1 1 1 1 1 0 0 1 1 0 0 114 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 115 0 0 0 0 0 0 1 2 2 1 2 0 2 0 0 0 0 0 0 0 0 0 0 0 0 216 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 0 0 0 0 0 0 0 0 0 0 217 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 018 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 019 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 020 0 0 0 0 0 1 2 1 0 1 0 0 0 0 0 0 0 0 0 0 1 2 1 0 0 221 0 0 0 0 0 0 0 0 0 3 7 1 0 0 0 0 0 0 0 0 0 1 0 1 1 722 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 123 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 024 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 025 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 026 0 0 0 0 0 0 0 0 1 3 2 2 2 1 0 1 1 1 1 1 1 1 1 1 1 327 1 1 2 1 1 1 1 1 2 6 5 1 1 1 1 1 1 1 1 1 1 1 1 1 1 628 1 0 0 1 2 1 1 1 1 1 1 1 1 0 0 0 1 1 1 1 0 1 0 1 1 229 0 0 0 0 1 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 1 0 0 0 130 1 0 1 0 0 0 0 1 0 0 0 0 1 0 0 1 0 1 1 0 1 0 0 0 0 131 0 0 0 1 0 0 0 1 1 0 0 0 0 0 0 0 1 1 1 1 1 0 1 0 0 1

Mean 0 0 0 0 0 0 0 0 0 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0

Max 1 1 2 1 2 1 2 3 4 6 7 2 4 2 1 1 1 1 1 1 1 2 1 1 1 7

POLLUTANT:

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SULPHUR DIOXIDE MAX 10-MIN CONCENTRATIONS - ppb


1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 02 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 03 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 04 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 15 0 0 0 0 0 1 1 0 2 1 0 0 5 2 0 0 0 0 0 0 0 0 0 0 1 56 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 07 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 08 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 09 0 0 0 0 0 0 0 0 0 0 0 1 8 1 0 0 0 0 0 0 0 0 0 0 0 8

10 0 0 0 0 0 0 0 1 0 9 8 1 1 0 0 1 1 1 1 1 1 0 0 0 1 911 1 1 1 1 0 1 2 3 4 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 412 0 0 1 0 0 0 1 4 1 0 0 0 0 0 2 1 0 0 0 0 0 0 1 1 1 413 0 0 0 0 0 0 1 0 0 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 214 1 0 0 0 0 0 0 0 0 1 1 2 1 1 0 0 0 0 0 0 0 0 0 0 0 215 0 0 0 0 0 1 1 3 3 2 2 1 5 1 0 0 0 0 0 0 0 0 0 0 1 516 0 0 0 0 0 0 1 0 0 0 0 0 0 4 1 0 0 0 1 0 0 0 0 0 0 417 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 018 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 019 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 020 0 0 0 2 0 2 2 3 0 2 1 0 0 0 0 0 0 0 0 0 1 6 4 1 1 621 0 0 0 0 0 0 1 0 0 5 9 2 0 0 0 0 0 0 1 1 1 2 1 2 1 922 2 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 223 0 0 0 0 0 0 1 0 0 0 0 1 1 0 0 0 1 1 1 0 0 0 0 0 0 124 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 025 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 026 0 0 0 0 0 0 0 1 1 5 6 6 5 1 1 1 1 1 1 1 1 1 1 1 1 627 1 2 2 1 1 1 1 2 2 9 8 2 1 1 1 1 1 1 1 1 1 1 1 1 2 928 1 1 1 2 3 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 329 0 1 1 0 1 1 1 1 1 1 1 0 1 1 0 1 1 1 1 1 1 1 1 1 1 130 1 1 1 1 1 1 1 1 0 1 0 0 1 1 1 1 1 1 1 1 1 1 0 1 1 131 1 1 1 1 0 1 1 1 1 1 0 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1

Mean 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0

Max 2 2 2 2 3 2 2 4 4 9 9 6 8 4 2 1 1 1 1 1 1 6 4 2 2 9

POLLUTANT:

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NITROGEN OXIDE HOURLY MEAN CONCENTRATIONS - ppb


1 0 0 0 0 0 1 1 3 2 2 2 1 1 1 2 1 2 2 4 1 0 0 0 0 1 42 0 0 0 0 0 0 1 1 0 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 1 13 0 0 0 0 0 0 1 2 1 1 1 1 1 2 2 2 2 5 2 1 1 8 19 8 3 194 4 3 1 16 21 16 20 22 32 23 9 1 1 1 2 2 2 2 1 0 0 0 0 0 7 325 0 0 0 0 0 0 0 0 1 2 2 1 3 1 1 1 2 3 2 1 1 3 1 2 1 36 0 0 0 0 0 1 2 1 1 1 1 1 0 1 0 0 0 1 1 0 0 0 0 0 0 27 0 0 0 0 0 1 1 3 9 3 1 1 1 1 1 1 1 1 2 2 1 1 1 0 1 98 0 0 0 0 0 0 1 1 1 1 2 1 1 1 1 1 1 2 3 2 1 0 0 0 1 39 0 1 5 9 1 0 0 3 13 4 6 3 5 2 2 3 4 4 6 2 2 0 0 0 3 13

10 0 0 0 0 0 1 0 14 6 10 7 2 1 2 4 4 4 4 3 3 2 1 1 1 3 1411 6 1 10 10 4 26 84 117 146 50 4 2 2 2 2 1 1 8 3 2 2 2 1 3 20 14612 4 2 4 0 0 0 0 0 1 2 2 3 4 4 - 3 3 4 4 2 3 1 3 1 2 413 4 6 6 10 8 11 24 16 15 16 15 5 1 2 3 2 1 3 4 2 3 12 18 17 9 2414 12 3 4 2 3 12 15 17 12 8 7 14 6 1 1 1 1 2 2 1 1 0 2 7 6 1715 2 3 7 2 7 16 27 90 65 30 9 1 3 2 2 2 3 5 2 0 0 0 0 1 12 9016 0 0 1 0 0 1 4 4 2 2 2 1 1 2 2 1 1 1 2 0 1 1 0 0 1 417 0 0 0 0 0 0 1 1 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 118 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 1 119 0 0 0 0 0 0 1 2 2 2 2 2 2 2 2 2 4 3 2 1 0 0 0 0 1 420 0 0 0 0 0 1 1 3 4 1 0 1 0 1 1 0 1 0 0 0 0 2 0 1 1 421 0 0 0 0 1 1 5 2 3 3 8 1 1 1 0 0 0 1 1 0 1 10 1 0 2 1022 0 0 0 0 0 1 2 2 1 1 1 1 0 1 1 0 1 1 0 0 0 0 0 0 1 223 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 1 124 0 0 0 0 0 0 2 2 2 2 1 1 1 2 5 1 1 1 1 0 1 0 0 0 1 525 0 0 0 0 0 0 1 3 2 1 0 1 1 1 1 1 1 1 1 0 0 2 0 0 1 326 0 0 3 1 0 1 4 13 17 10 7 8 4 3 4 5 5 4 2 2 0 2 2 1 4 1727 1 1 2 1 1 2 2 27 25 12 8 4 4 7 4 2 2 4 3 2 3 10 10 6 6 2728 0 0 0 0 0 0 0 0 2 2 1 1 0 0 0 0 0 0 1 0 0 0 0 0 0 229 0 0 0 0 0 0 1 1 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0 130 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 2 1 2 1 0 0 0 0 0 1 231 0 0 0 0 1 2 7 9 5 4 1 1 2 2 2 2 3 6 6 14 5 1 6 5 4 14

Mean 1 1 1 2 2 3 7 12 12 6 3 2 2 2 2 1 2 2 2 1 1 2 2 2 3

Max 12 6 10 16 21 26 84 117 146 50 15 14 6 7 5 5 5 8 6 14 5 12 19 17 20 146

POLLUTANT:

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A1138 APPENDIX 1: SALDANHA BAY AMBIENT AIR QUALITY DATA - JULY 2019

NITROGEN DIOXIDE HOURLY MEAN CONCENTRATIONS - ppb


1 0 0 0 0 1 2 2 4 4 2 2 1 1 1 1 1 2 6 7 2 1 0 1 1 2 72 0 0 0 0 0 1 3 3 1 1 1 1 1 0 1 1 1 2 1 1 1 0 0 0 1 33 0 0 0 0 0 1 4 4 3 2 2 2 1 1 1 1 3 6 7 4 8 9 12 10 3 124 8 8 6 10 8 7 8 9 10 7 4 1 1 1 1 1 2 5 4 2 2 1 1 1 5 105 0 1 1 1 1 3 3 2 8 8 4 4 7 4 1 2 2 3 2 3 3 9 9 8 4 96 6 2 1 2 1 2 4 4 3 2 2 1 1 1 1 1 1 1 1 1 0 0 0 0 2 67 1 2 1 2 1 2 4 9 13 6 1 1 0 1 1 1 2 3 4 3 3 2 1 1 3 138 1 1 1 1 0 1 2 2 2 2 1 1 1 1 1 1 1 3 4 3 3 1 0 0 1 49 3 6 8 12 9 3 2 10 13 6 6 3 5 3 2 3 5 7 11 7 4 4 5 5 6 13

10 11 6 3 1 1 6 3 16 9 9 7 2 2 2 5 5 7 12 16 13 10 7 5 10 7 1611 14 12 11 10 10 10 15 18 19 14 8 3 2 2 3 2 3 14 13 9 14 10 8 10 10 1912 10 8 13 4 2 2 2 5 3 3 3 4 5 5 - 12 10 10 12 10 12 9 11 10 7 1313 11 10 8 7 10 8 12 12 12 10 9 5 2 3 5 4 5 9 16 17 15 18 14 13 10 1814 12 10 8 7 5 8 9 7 8 5 4 8 5 3 1 2 2 5 4 3 5 8 7 10 6 1215 6 7 9 6 10 12 14 25 19 11 10 2 4 3 3 3 5 10 8 7 10 3 4 8 8 2516 2 3 6 5 5 5 10 7 7 5 4 2 1 4 2 2 3 5 5 4 2 2 2 2 4 1017 1 1 1 1 1 2 4 6 2 2 1 1 1 1 1 1 2 2 2 1 1 0 0 0 1 618 0 0 1 0 0 1 2 2 1 1 1 1 1 1 1 1 1 1 1 0 1 0 0 0 1 219 0 0 0 0 0 1 3 5 3 2 1 1 2 1 2 3 5 7 6 3 2 2 1 1 2 720 0 0 1 3 4 7 6 10 6 2 0 1 1 2 2 2 2 2 2 3 5 10 9 10 4 1021 4 4 4 6 4 9 12 10 9 5 8 1 1 1 1 1 2 4 6 4 8 10 8 6 5 1222 5 3 2 2 2 4 4 6 3 2 2 1 1 1 1 1 1 1 1 1 0 0 0 0 2 623 0 0 0 0 0 0 1 1 1 1 1 2 1 1 1 1 0 1 0 0 0 0 0 0 1 224 0 0 0 0 0 1 5 5 4 2 1 1 1 1 2 1 2 3 3 1 1 1 0 0 1 525 0 0 0 0 0 2 4 6 4 2 1 1 1 1 1 2 3 4 3 3 4 7 2 2 2 726 2 5 8 8 7 8 14 17 13 10 6 5 4 3 4 8 11 13 11 12 9 8 19 11 9 1927 13 17 16 14 13 12 12 16 14 12 9 5 5 8 7 5 5 10 9 10 15 16 16 11 11 1728 7 4 3 8 13 9 9 10 9 6 2 2 2 2 1 1 2 3 6 5 4 2 1 1 5 1329 1 0 0 0 0 1 3 4 2 2 1 1 1 1 1 1 1 1 1 0 0 0 0 0 1 430 0 0 0 0 0 0 1 2 1 0 0 1 1 0 1 1 1 2 2 1 1 0 0 0 1 231 0 0 0 1 1 3 8 9 5 5 2 1 2 1 1 2 3 10 16 22 15 11 15 12 6 22

Mean 4 4 4 4 4 4 6 8 7 5 3 2 2 2 2 2 3 5 6 5 5 5 5 5 4

Max 14 17 16 14 13 12 15 25 19 14 10 8 7 8 7 12 11 14 16 22 15 18 19 13 11 25

POLLUTANT:

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OXIDES OF NITROGEN HOURLY MEAN CONCENTRATIONS - ppb


1 0 0 0 0 1 2 3 7 6 4 4 3 2 2 2 2 3 8 10 3 2 0 1 0 3 102 0 0 0 0 0 1 4 4 2 1 2 1 1 1 2 2 2 3 2 2 1 1 0 0 1 43 0 0 1 1 1 2 5 6 4 3 3 3 2 2 3 3 5 11 9 6 9 18 31 19 6 314 13 11 6 26 28 24 28 30 42 30 12 2 2 2 3 3 4 6 5 3 3 1 1 1 12 425 0 1 1 1 1 3 4 3 9 11 6 5 10 5 2 3 4 6 5 4 4 12 11 10 5 126 7 3 1 2 2 3 5 4 4 2 2 2 1 2 1 1 1 2 2 1 1 1 0 1 2 77 1 2 1 2 1 2 5 12 22 10 2 2 2 1 2 2 2 4 6 6 4 3 2 1 4 228 1 1 1 1 0 1 3 4 3 3 3 2 2 2 1 2 2 5 8 4 3 1 1 1 2 89 3 7 14 22 10 3 2 12 26 10 11 6 10 6 5 6 9 12 17 9 6 4 6 5 9 26

10 12 6 2 2 1 7 3 30 15 19 14 4 3 4 9 8 12 16 19 16 12 8 6 11 10 3011 20 13 22 20 14 36 100 135 166 64 12 6 4 5 4 3 5 22 16 11 15 12 10 12 30 16612 14 9 17 4 2 2 2 5 4 5 4 7 9 9 - 15 13 14 16 13 14 10 14 11 9 1713 16 17 14 17 18 19 36 28 27 26 24 10 3 4 7 6 6 12 20 19 18 30 32 30 18 3614 25 13 12 8 9 20 24 23 20 13 12 21 11 4 2 2 3 8 7 4 6 8 9 16 12 2515 8 10 16 8 16 28 41 116 84 42 19 4 7 5 5 6 8 15 10 7 11 4 5 10 20 11616 3 3 6 5 5 6 14 11 9 7 5 2 2 6 4 3 4 7 6 4 3 3 2 2 5 1417 1 1 1 1 1 2 4 7 3 2 2 2 2 2 2 1 2 3 2 2 1 1 1 1 2 718 1 0 1 1 0 1 2 3 2 2 2 2 2 1 2 2 2 2 2 1 1 0 0 0 1 319 1 0 0 0 1 2 4 7 5 4 3 3 4 4 4 5 8 10 8 4 3 3 1 1 4 1020 0 0 1 3 4 9 7 13 10 2 1 1 1 3 2 2 3 3 2 3 5 12 10 11 5 1321 5 5 4 7 5 10 17 12 12 8 15 1 2 2 1 2 3 5 6 5 9 20 9 6 7 2022 6 3 2 2 2 4 6 8 4 4 2 2 1 1 2 1 2 2 2 1 1 0 0 0 2 823 0 0 0 0 0 1 1 2 2 1 2 3 2 2 2 2 2 2 1 1 0 0 0 0 1 324 0 0 0 0 0 2 7 7 6 3 2 2 2 2 8 2 3 3 4 2 2 1 0 0 2 825 0 1 0 0 1 2 5 9 5 2 2 1 2 2 2 2 4 5 4 3 4 10 2 2 3 1026 2 5 11 9 8 8 18 30 30 20 13 14 8 6 8 12 16 16 13 13 9 10 21 12 13 3027 14 18 18 16 14 14 14 43 38 24 17 9 9 14 11 7 7 13 12 12 17 26 26 18 17 4328 7 4 3 8 14 9 9 10 12 8 3 3 3 2 2 2 2 4 7 5 5 1 1 1 5 1429 0 0 1 0 1 1 3 4 2 2 2 1 2 2 2 2 2 2 1 0 1 0 0 0 1 430 0 0 0 0 0 0 2 4 2 1 1 2 2 1 2 2 2 4 3 2 2 1 1 0 1 431 0 0 0 1 2 5 15 18 10 8 3 2 4 3 3 3 6 16 22 36 20 12 21 17 9 36

Mean 5 4 5 5 5 7 13 20 19 11 7 4 4 3 4 4 5 8 8 7 6 7 7 6 7

Max 25 18 22 26 28 36 100 135 166 64 24 21 11 14 11 15 16 22 22 36 20 30 32 30 30 166

POLLUTANT:

26 of 53


OZONE HOURLY MEAN CONCENTRATIONS - ppb


1 30 31 32 31 30 29 28 26 26 27 27 29 30 30 30 30 30 22 19 23 24 27 27 27 28 322 26 25 27 27 26 25 23 22 25 26 27 27 27 25 24 25 25 25 25 25 24 24 25 25 25 273 25 24 24 24 23 22 20 20 21 22 22 23 25 27 26 27 25 20 19 22 11 4 0 1 20 274 0 1 2 0 0 0 0 0 1 3 20 28 28 28 28 28 25 20 19 22 19 22 28 29 15 295 29 26 24 22 23 22 21 23 14 9 17 19 17 20 25 24 24 22 23 22 20 10 7 11 20 296 11 18 20 20 18 16 16 17 19 22 22 20 22 22 24 26 25 25 24 25 25 24 22 21 21 267 20 20 21 20 22 21 21 15 12 20 27 28 28 29 28 28 26 21 20 18 18 20 20 21 22 298 20 20 19 16 20 20 20 20 20 19 20 22 20 22 23 23 23 20 15 16 18 19 23 23 20 239 11 5 2 0 4 12 18 7 4 12 13 15 20 22 24 23 21 17 13 14 18 16 12 10 13 24

10 4 12 18 17 18 14 20 7 12 9 14 21 23 26 26 27 23 17 12 12 15 16 18 8 16 2711 2 4 0 0 5 0 0 0 0 2 17 23 24 24 26 27 25 12 13 16 10 8 8 3 10 2712 1 2 4 18 23 25 24 20 21 24 24 25 27 28 - 32 29 25 21 21 19 21 17 13 20 3213 2 1 1 0 0 0 0 1 3 5 8 14 23 25 30 32 33 27 18 16 15 2 1 1 11 3314 2 2 1 2 2 0 0 0 2 4 6 8 12 22 29 30 30 26 26 27 18 7 4 2 11 3015 1 1 0 1 0 1 1 1 1 5 16 27 27 28 28 28 25 19 23 22 18 24 18 13 14 2816 19 18 14 13 16 17 10 17 16 19 21 26 28 23 26 26 24 18 17 19 22 20 20 21 20 2817 23 23 22 21 22 23 22 20 23 23 25 27 27 29 30 31 30 29 29 30 30 30 29 28 26 3118 28 27 26 26 25 24 22 21 21 21 21 22 22 23 23 23 23 22 22 22 21 22 21 22 23 2819 24 26 28 30 30 30 28 24 26 28 28 29 28 28 29 28 27 25 25 28 28 28 30 30 28 3020 30 30 28 21 18 17 18 13 22 28 29 30 31 31 34 35 34 32 30 26 22 16 15 10 25 3521 14 15 17 12 15 12 8 12 13 16 15 24 26 26 26 25 23 18 17 19 12 10 9 12 17 2622 9 18 14 12 13 13 14 13 15 18 20 23 26 28 26 26 26 26 26 26 27 27 27 28 21 2823 28 28 28 28 28 28 29 27 29 29 32 32 32 32 32 31 31 31 31 31 30 30 30 30 30 3224 30 30 27 30 30 27 22 23 23 26 28 29 29 29 29 29 26 24 23 23 23 24 24 23 26 3025 23 22 23 22 24 22 19 16 18 23 26 28 29 28 28 27 25 23 22 22 19 12 20 17 22 2926 14 8 4 5 8 8 4 1 4 11 13 18 23 26 25 27 24 21 20 18 21 20 7 14 14 2727 11 8 8 8 9 9 9 3 6 9 14 21 22 20 23 27 29 22 22 20 12 3 4 8 14 2928 20 14 22 17 7 7 6 5 5 11 24 28 27 29 30 31 29 28 21 20 22 28 28 28 20 3129 26 31 31 33 33 33 31 29 30 30 30 30 29 30 30 30 31 32 34 35 35 35 35 34 32 3530 33 30 30 30 30 30 28 28 30 30 30 29 29 29 29 30 30 27 26 26 27 28 25 26 29 3331 26 26 25 22 24 25 20 17 20 20 26 29 28 29 30 30 27 17 12 5 10 11 4 4 20 30

Mean 17 18 17 17 18 17 16 14 16 18 21 24 25 26 27 28 27 23 22 22 20 19 18 18 20

Max 33 31 32 33 33 33 31 29 30 30 32 32 32 32 34 35 34 32 34 35 35 35 35 34 32 35

POLLUTANT:

27 of 53


OZONE EIGHT-HOURLY MEAN CONCENTRATIONS - ppb


1 30 29 29 28 28 28 28 28 28 29 28 27 27 26 26 25 25 24 25 26 26 26 26 26 27 302 25 25 25 25 25 25 25 26 26 26 26 26 25 25 25 25 25 25 25 25 24 24 24 23 25 263 23 22 22 22 22 22 22 23 24 25 24 24 24 22 19 16 13 10 7 5 2 1 1 1 17 254 0 0 1 3 6 10 13 17 20 23 25 25 25 24 23 23 23 23 24 25 25 25 25 24 18 255 24 22 20 19 18 18 18 18 18 19 21 22 22 22 21 19 17 16 15 15 15 14 15 16 19 246 17 18 18 19 19 19 20 21 22 23 23 24 24 24 25 24 24 23 23 22 22 21 21 21 22 257 20 19 19 20 21 22 22 23 25 27 27 26 25 24 22 22 21 20 20 20 19 20 20 20 22 278 20 19 19 19 20 20 20 21 21 22 22 21 20 20 20 20 20 18 16 15 13 11 10 9 18 229 7 6 7 9 11 12 14 15 17 19 19 19 19 19 18 17 15 13 12 13 14 14 13 14 14 19

10 14 15 14 14 14 15 17 17 20 21 22 22 21 20 19 18 15 13 11 9 8 6 5 2 15 2211 1 1 1 3 6 8 11 14 18 21 22 22 21 19 17 15 12 9 8 6 7 8 11 13 11 2212 15 17 20 22 23 24 24 25 26 27 26 26 25 24 - 23 21 17 14 12 9 7 4 2 19 2713 1 1 1 2 4 7 10 14 18 21 24 25 25 24 21 18 14 10 7 5 3 2 1 1 11 2514 1 1 1 2 3 4 7 10 14 18 20 23 25 26 24 21 18 14 11 8 4 2 1 1 11 2615 1 1 1 3 7 10 13 17 20 23 25 26 25 24 23 22 20 19 19 18 17 17 16 15 16 2616 15 15 15 16 18 19 20 22 23 24 24 24 23 22 22 21 20 20 21 21 22 22 22 22 21 2417 22 22 22 23 23 24 25 26 27 28 28 29 29 30 30 30 30 29 29 29 28 27 27 26 27 3018 25 24 23 23 22 22 22 22 22 22 22 23 23 22 22 22 22 22 23 23 24 26 26 27 23 2719 27 28 28 28 28 27 27 27 28 28 28 27 27 27 27 27 28 28 29 29 28 27 25 24 27 2920 22 21 20 20 22 23 25 27 30 31 32 32 32 30 28 26 23 21 18 17 15 14 14 13 23 3221 13 13 13 13 14 16 18 20 22 23 23 23 23 21 19 17 15 13 13 13 12 12 12 13 16 2322 13 14 14 15 16 18 20 21 23 24 25 26 26 26 26 26 26 27 27 27 28 28 28 28 23 2823 28 28 28 29 29 30 30 30 31 31 32 31 31 31 31 31 31 30 30 30 30 30 29 28 30 3224 27 26 26 26 26 26 26 27 28 28 28 27 26 26 25 25 24 24 23 23 23 23 23 22 25 2825 22 21 21 21 22 22 23 24 26 27 27 26 26 24 22 21 20 19 17 14 12 11 10 8 20 2726 6 5 6 7 8 10 12 15 18 21 22 23 23 23 22 20 18 17 15 13 12 11 9 10 14 2327 8 8 8 8 10 12 13 15 18 20 22 23 23 22 20 17 15 14 13 13 12 12 12 12 15 2328 12 10 10 10 12 14 17 20 23 26 28 28 27 26 26 26 25 25 25 26 28 30 30 31 22 3129 31 31 31 31 31 30 30 30 30 30 30 31 32 32 33 34 34 34 34 33 33 32 31 31 32 3430 30 29 29 30 29 29 29 29 30 30 29 29 28 28 28 27 27 26 26 26 26 25 25 24 28 3031 23 22 22 22 23 23 24 25 27 28 27 25 22 20 18 15 12 - - - - - - - - -

Mean 17 17 17 17 18 19 20 22 23 25 25 25 25 24 23 22 21 20 19 19 18 18 17 17 20

Max 31 31 31 31 31 30 30 30 31 31 32 32 32 32 33 34 34 34 34 33 33 32 31 31 32 34

POLLUTANT:

28 of 53


PM-10 HOURLY MEAN CONCENTRATIONS - µg/m3


1 - - - - - - - - - - - - - - - - - - - - - - - - - -2 - - - - - - - - - - - - - - - - - - - - - - - - - -3 - - - - - - - - - - - - - - - - - - - - - - - - - -4 - - - - - - - - - - - - - - - - - - - - - - - - - -5 - - - - - - - - - - - - - - - - - - - - - - - - - -6 - - - - - - - - - - - - - - - - - - - - - - - - - -7 - - - - - - - - - - - - - - - - - - - - - - - - - -8 - - - - - - - - - - - - - - - - - - - - - - - - - -9 - - - - - - - - - - - - - - - - - - - - - - - - - -

10 - - - - - - - - - - - - - - - - - - - - - - - - - -11 - - - - - - - - - - - - - - - - - - - - - - - - - -12 - - - - - - - - - - - - - - - - - - - - - - - - - -13 - - - - - - - - - - - - - - - - - - - - - - - - - -14 - - - - - - - - - - - - - - - - - - - - - - - - - -15 - - - - - - - - - - - - - - - - - - - - - - - - - -16 - - - - - - - - - - - - - - - - - - - - - - - - - -17 - - - - - - - - - - - - - - - - - - - - - - - - - -18 - - - - - - - - - - - - - - - - - - - - - - - - - -19 - - - - - - - - - - - - - - - - - - - - - - - - - -20 - - - - - - - - - - - - - - - - - - - - - - - - - -21 - - - - - - - - - - - - - - - - - - - - - - - - - -22 - - - - - - - - - - - - - - - - - - - - - - - - - -23 - - - - - - - - - - - - - - - - - - - - - - - - - -24 - - - - - - - - - - - - - - - - - - - - - - - - - -25 - - - - - - - - - - - - - - - - - - - - - - - - - -26 - - - - - - - - - - - - - - - - - - - - - - - - - -27 - - - - - - - - - - - - - - - - - - - - - - - - - -28 - - - - - - - - - - - - - - - - - - - - - - - - - -29 - - - - - - - - - - - - - - - - - - - - - - - - - -30 - - - - - - - - - - - - - - - - - - - - - - - - - -31 - - - - - - - - - - - - - - - - - - - - - - - - - -

Mean - - - - - - - - - - - - - - - - - - - - - - - - -

Max - - - - - - - - - - - - - - - - - - - - - - - - - -

POLLUTANT:

29 of 53




1 - - - - - - - - - - - - - - - - - - - - - - - - - -2 - - - - - - - - - - - - - - - - - - - - - - - - - -3 - - - - - - - - - - - - - - - - - - - - - - - - - -4 - - - - - - - - - - - - - - - - - - - - - - - - - -5 - - - - - - - - - - - - - - - - - - - - - - - - - -6 - - - - - - - - - - - - - - - - - - - - - - - - - -7 - - - - - - - - - - - - - - - - - - - - - - - - - -8 - - - - - - - - - - - - - - - - - - - - - - - - - -9 - - - - - - - - - - - - - - - - - - - - - - - - - -

10 - - - - - - - - - - - - - - - - - - - - - - - - - -11 - - - - - - - - - - - - - - - - - - - - - - - - - -12 - - - - - - - - - - - - - - - - - - - - - - - - - -13 - - - - - - - - - - - - - - - - - - - - - - - - - -14 - - - - - - - - - - - - - - - - - - - - - - - - - -15 - - - - - - - - - - - - - - - - - - - - - - - - - -16 - - - - - - - - - - - - - - - - - - - - - - - - - -17 - - - - - - - - - - - - - - - - - - - - - - - - - -18 - - - - - - - - - - - - - - - - - - - - - - - - - -19 - - - - - - - - - - - - - - - - - - - - - - - - - -20 - - - - - - - - - - - - - - - - - - - - - - - - - -21 - - - - - - - - - - - - - - - - - - - - - - - - - -22 - - - - - - - - - - - - - - - - - - - - - - - - - -23 - - - - - - - - - - - - - - - - - - - - - - - - - -24 - - - - - - - - - - - - - - - - - - - - - - - - - -25 - - - - - - - - - - - - - - - - - - - - - - - - - -26 - - - - - - - - - - - - - - - - - - - - - - - - - -27 - - - - - - - - - - - - - - - - - - - - - - - - - -28 - - - - - - - - - - - - - - - - - - - - - - - - - -29 - - - - - - - - - - - - - - - - - - - - - - - - - -30 - - - - - - - - - - - - - - - - - - - - - - - - - -31 - - - - - - - - - - - - - - - - - - - - - - - - - -

Mean - - - - - - - - - - - - - - - - - - - - - - - - -

Max - - - - - - - - - - - - - - - - - - - - - - - - - -

POLLUTANT:

30 of 53


WIND DIRECTION HOURLY MEAN - DEGREES (°)

Start Hr 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23Day

1 320 315 286 272 272 252 255 283 270 252 240 254 266 275 282 278 290 320 320 263 166 158 154 87

2 162 130 290 227 74 51 47 44 35 38 53 61 54 60 63 48 47 50 41 37 42 59 148 85

3 63 57 44 87 130 111 178 269 266 178 234 221 284 325 317 306 308 298 281 283 192 8 142 31

4 48 167 63 34 35 45 100 94 44 83 316 306 317 315 317 317 302 195 282 144 149 175 220 192

5 181 172 173 168 176 182 171 169 131 115 140 142 181 88 73 336 299 298 290 307 327 236 31 284

6 59 348 357 318 307 290 299 38 55 44 31 31 32 36 59 76 79 111 140 210 305 326 324 322

7 314 308 303 300 287 291 270 257 252 240 248 267 270 278 312 310 329 327 303 309 312 319 326 322

8 315 300 344 193 236 243 247 262 108 99 140 172 118 122 204 234 208 262 323 323 313 329 313 307

9 68 106 44 124 72 65 100 95 70 70 129 121 162 202 216 215 215 220 214 217 213 226 311 55

10 150 222 168 156 162 203 194 184 160 132 169 165 183 197 212 216 216 214 206 216 189 192 167 216

11 248 214 229 182 217 47 102 342 117 119 203 223 233 225 214 198 194 239 240 246 359 37 117 217

12 174 213 190 193 179 183 160 167 178 174 180 198 207 210 213 216 222 234 226 230 230 230 230 234

13 30 3 57 71 30 59 97 117 70 100 148 157 177 194 217 222 234 233 217 221 216 91 33 198

14 94 147 204 75 52 55 59 358 180 62 124 152 160 304 298 254 257 286 289 280 294 60 18 247

15 36 64 31 38 128 77 25 270 27 104 134 126 172 210 215 216 215 216 195 184 195 189 160 175

16 176 186 180 183 204 244 227 252 68 266 166 128 140 163 308 282 196 328 325 52 321 337 183 59

17 51 61 59 50 40 49 34 34 35 35 40 41 33 36 32 33 36 34 32 44 54 34 30 41

18 39 33 34 34 32 33 46 31 42 54 69 95 118 159 192 212 194 200 212 221 211 246 284 286

19 326 307 311 268 264 262 278 312 245 251 247 250 246 240 225 228 215 212 210 200 203 206 205 193

20 179 177 143 103 76 150 154 137 159 163 165 170 174 179 184 184 184 180 179 171 166 160 169 40

21 321 189 200 335 276 94 274 267 66 49 94 53 38 36 37 34 31 42 48 27 60 220 104 269

22 50 318 335 102 97 83 119 62 33 35 36 48 64 61 53 45 32 37 56 40 40 43 52 60

23 73 88 56 36 40 49 234 207 314 304 263 318 316 315 308 312 313 309 301 308 304 316 282 308

24 303 318 291 314 310 301 309 286 320 297 311 324 313 311 320 264 184 37 70 42 82 30 42 269

25 189 105 35 29 33 32 72 250 56 37 48 76 104 75 54 72 131 82 80 172 61 352 157 110

26 117 112 292 36 73 38 206 82 50 127 157 162 191 212 220 214 210 207 201 203 188 184 194 209

27 205 204 211 208 206 210 205 179 209 160 197 211 208 216 214 210 215 221 228 221 220 167 223 199

28 207 97 80 198 43 45 51 81 75 46 33 210 45 37 35 81 37 35 29 32 31 34 37 42

29 38 39 35 33 31 40 36 34 35 32 33 32 33 34 34 31 36 34 36 36 47 40 40 36

30 91 92 118 169 182 208 191 173 268 306 301 323 323 324 319 316 326 326 327 301 299 326 318 328

31 317 322 311 312 290 301 306 310 310 318 330 272 259 264 259 260 252 234 236 216 221 205 193 229

POLLUTANT:

31 of 53


WIND SPEED HOURLY MEAN - m.s-1


1 2 3.9 3.6 2.6 2.3 3.7 3.9 2.8 2.4 3.2 3.2 4.5 4.2 4 3.7 3.4 2.8 1.7 1.7 2.3 3.1 3.6 3.8 3.8 3.2 4.52 3.4 2.4 2.7 3.4 3.2 3.8 3.5 3.7 5.1 6.8 7.1 7.6 7.7 7.3 6.8 6.3 5.8 4.8 4.9 4.3 3.4 3.4 3.8 3.8 4.8 7.73 3.5 3.2 3 2.5 1.3 1.5 2 2.6 2.5 3.9 2.9 3.2 3.1 4.1 3.8 3.1 2.4 2.1 1.4 1.4 0.7 0.4 0.4 0.6 2.3 4.14 0.5 0.3 0.6 0.8 0.7 0.5 0.5 0.5 0.8 1.6 2.3 3.9 3.9 4.1 3.4 3.7 2.9 2.5 2.2 2.4 2.2 3.2 3.2 3.6 2.1 4.15 3.5 3.1 2.8 1.9 2.4 1.9 1.6 2.3 1.8 0.9 1 1.7 0.9 2.9 2.4 1.7 3.2 2.8 3.8 1.4 1.6 0.7 1 1.2 2.0 3.86 1.2 1.4 1.5 1.2 1.3 1.8 1.5 1.7 2.1 3.2 3.8 4.6 5.3 5.2 5.2 5.5 5.2 4.8 4.4 4.7 4.6 4.6 4.5 3.5 3.5 5.57 3.1 2.9 2.4 2.1 2.1 2 1.5 0.8 0.9 1.4 2.3 2.6 2.4 2.5 2.9 3.2 3.2 2.1 2.1 2.1 2.1 1.9 1.8 1.9 2.2 3.28 1.7 2 1.1 1.6 2.8 2.8 3.1 3.4 3.7 3.5 4.4 5 4.7 4.5 4.2 3.7 3.4 2.6 1.9 1.6 1.5 2 2.5 1.9 2.9 5.09 0.8 0.7 1 0.5 1 0.9 0.7 0.7 1.1 0.8 0.6 1.3 1.8 2.7 3.6 3.6 3.2 2.4 2.2 2 2.7 1.1 0.9 0.8 1.5 3.6

10 0.8 2 2.1 2.4 2.2 1.3 1.8 1.1 1.2 1 1.4 2.4 2.9 3.5 4.3 4 3.3 2.7 2 1.5 1.3 1.2 1 0.8 2.0 4.311 0.7 1 0.6 0.6 1.3 0.6 0.6 0.7 0.5 0.6 1.9 2.9 3.9 3.7 3.4 2.2 1.8 1.2 0.8 0.7 0.5 0.7 0.6 0.5 1.3 3.912 0.6 0.9 1.4 2.5 4.7 4.2 3.2 2.1 2.5 3.6 3.2 3.6 4.2 4.6 5.1 4.8 3.4 2.3 2.2 1.6 1.5 1.6 1.6 1.1 2.8 5.113 0.6 0.7 0.6 0.5 0.9 1 0.9 0.8 0.6 0.6 1.4 1.7 1.8 2.3 3.4 3.2 3.2 2.6 1.3 1.5 1 0.4 0.5 0.4 1.3 3.414 0.5 0.5 0.5 0.7 0.7 0.7 0.9 1.1 0.7 1 0.8 1.7 2.4 1.9 1.9 1.6 1.7 1.7 2.7 2.7 1.1 0.5 0.8 0.4 1.2 2.715 0.7 0.6 0.9 0.8 0.4 0.7 1.1 0.6 0.9 0.8 0.8 1.4 2 3.9 4.2 4.2 4.3 3.3 2.1 2 2.1 2 0.9 1.1 1.7 4.316 1.3 1 0.8 0.9 1.6 4.2 1.1 1.3 0.7 1.2 1.2 1.5 1.8 2.1 2.6 2.7 2.6 2 2.2 1.5 2.7 2.2 1.9 2.2 1.8 4.217 2.3 2.4 2.1 2.3 2.4 2.9 3.4 3.5 4.5 4.9 5.6 5.6 5.7 6.3 7 6.4 5.6 5.2 4.8 4.6 4.9 5.1 5.2 5.2 4.5 7.018 5.1 5.1 5.5 5 5.4 5.5 5.9 6.1 5.8 5.9 5.6 5.7 5.4 5.6 5.7 5.7 5.9 5.3 5 5.2 5.4 5.7 5.7 5.9 5.5 6.119 4.2 3.7 2.8 2.9 3.4 2.7 2.2 2.1 2.8 3.6 4.3 4.8 4.4 4.7 5.5 4.9 5.2 4.3 4.2 3.6 4.2 4.5 4 4.7 3.9 5.520 4.3 4.1 2.7 1.4 0.8 1.7 2 1.5 2.9 3.6 4.2 4.8 4.8 5.1 5.4 5.7 5.5 5.4 4.2 3.8 4.2 3.1 1.1 1.1 3.5 5.721 1.6 0.9 0.7 1.3 1.5 0.8 0.8 1.4 1.4 1.7 1.5 3.4 5.4 6.6 6.4 5.6 3.9 2.1 2 2 0.9 1.8 1.2 1.4 2.3 6.622 1.3 3 2 1.2 1.7 1.8 2.5 2.2 2.7 3.3 4.7 5.3 6.5 7.4 6.8 7.1 6.8 6.7 6.7 6.5 6.8 7 7.2 7.8 4.8 7.823 8 8.3 8.4 7.8 8.1 8.7 7.3 6 6.8 7.1 7.4 4.1 5.8 6.6 6.6 6.3 7.3 7.1 6.8 6.2 5.4 4.6 2.7 3.5 6.5 8.724 3.7 4.7 1.8 3.8 3.4 2.1 2 2.1 2.5 2.6 4.5 4.9 4.9 4.6 4.7 5 4.2 3.3 3 3.1 3.1 3.1 3.3 3.2 3.5 5.025 2.8 2.4 2.6 2.8 3.5 3.4 2.9 2.5 2.6 3.7 4.4 4.8 4.5 4.3 4.8 4.7 3.8 2.9 1.5 1.1 0.9 1 1.4 1.1 2.9 4.826 0.6 0.7 0.7 1.1 0.7 1 1 0.5 0.9 1.1 1.7 1.5 2.4 3.1 3.7 4.6 3.7 2.7 2.6 2.4 1.5 1.1 0.9 2 1.8 4.627 1.8 2.5 2.3 2.3 2 2 1.7 0.8 1.1 1 2.4 3.7 2.9 3.5 2.8 3.1 3.6 3.2 2.7 2.2 0.8 0.6 0.7 0.9 2.1 3.728 1.1 0.8 0.8 0.8 1.6 1.2 0.9 0.7 0.7 1.2 2.3 3 3.2 3.5 3.1 2.8 3 2.7 1.9 1.7 1.9 2.3 2.3 1.9 1.9 3.529 2.1 3.7 3.7 3.7 3.8 3.9 3.7 3.6 4.4 5.3 5.9 6.6 6.1 6.7 6.8 6.9 7.3 7.2 7.4 8.1 7.7 7.4 7.6 7.3 5.7 8.130 7.7 6.2 6.5 7 6.3 6.5 5.4 5.5 6.5 7.4 8 6.5 6.7 6.9 5.9 5.7 5.3 3.9 3.1 3.1 3.7 2.9 2.3 2.9 5.5 8.031 2.7 2.6 1.9 1.2 2.2 2.3 2.4 2.2 2.3 1.6 1.8 1.8 2.9 2.8 3 2.5 2.5 1.8 0.6 0.9 1 0.7 0.7 0.8 1.9 3.0

Mean 2.4 2.5 2.3 2.2 2.4 2.5 2.3 2.2 2.4 2.8 3.3 3.7 4.0 4.4 4.5 4.3 4.1 3.4 3.0 2.8 2.7 2.6 2.4 2.5 3.0

Max 8.0 8.3 8.4 7.8 8.1 8.7 7.3 6.1 6.8 7.4 8.0 7.6 7.7 7.4 7.0 7.1 7.3 7.2 7.4 8.1 7.7 7.4 7.6 7.8 6.5 8.7

POLLUTANT:

32 of 53


AMBIENT TEMPERATURE HOURLY MEAN - °C


1 12 13 13 13 13 13 13 13 14 15 16 16 17 17 17 16 16 14 13 13 13 13 13 13 14 172 13 14 13 13 14 14 13 13 14 14 15 15 14 14 14 14 14 14 14 14 14 14 14 14 14 153 14 14 14 14 14 14 14 14 14 15 16 18 19 19 18 18 18 16 15 15 13 12 11 11 15 194 10 9 9 8 8 8 8 8 10 13 16 18 18 18 18 18 18 16 15 15 15 15 14 14 13 185 13 13 13 13 12 13 13 13 13 13 14 14 15 16 17 17 15 13 12 13 12 12 11 11 13 176 10 10 11 12 12 12 12 12 13 14 14 14 15 16 15 14 14 14 15 15 15 16 16 16 14 167 16 16 16 16 15 15 15 14 15 16 18 18 19 19 19 18 17 16 14 14 14 14 14 14 16 198 14 14 14 14 13 13 13 13 14 15 16 17 18 18 18 18 17 16 15 14 14 14 14 14 15 189 12 12 11 11 11 12 11 11 11 12 15 17 18 19 18 18 17 15 14 14 13 13 12 11 14 19

10 10 11 12 12 12 12 13 13 14 14 16 17 18 19 18 17 17 15 15 14 14 14 13 12 14 1911 12 12 10 10 11 9 8 9 10 13 15 16 16 17 17 17 17 16 15 15 15 15 14 14 13 1712 14 14 13 14 14 14 13 13 13 14 16 16 16 17 17 17 17 15 14 14 13 13 13 12 14 1713 9 9 8 7 8 7 7 8 9 12 14 16 17 18 17 17 16 14 13 13 12 10 9 8 12 1814 8 8 7 7 6 6 5 5 6 9 12 13 14 16 16 16 16 15 13 13 11 9 8 9 10 1615 8 8 7 6 7 8 7 8 9 12 14 16 16 16 16 16 15 14 14 13 13 13 12 12 12 1616 12 12 12 12 12 12 12 12 13 14 16 17 17 17 17 17 16 14 13 12 12 12 12 12 14 1717 13 13 13 12 13 13 13 13 13 14 15 16 15 15 16 15 15 14 14 14 14 14 14 14 14 1618 14 14 14 14 14 13 13 13 14 14 14 14 15 16 16 16 16 16 16 16 16 16 16 16 15 1619 16 15 15 15 15 14 14 14 14 15 16 15 14 15 15 15 14 13 13 13 13 13 13 12 14 1620 12 12 11 10 9 9 9 8 10 11 12 13 14 14 14 14 14 13 13 12 12 11 10 7 11 1421 7 7 7 6 6 6 6 6 8 11 14 19 21 22 23 23 23 20 18 18 15 14 12 12 14 2322 10 13 13 11 12 12 12 12 13 15 15 16 17 17 16 15 15 14 14 14 14 14 14 14 14 1723 14 14 14 14 14 14 14 14 14 15 13 12 14 15 15 15 15 14 13 12 12 11 12 13 14 1524 13 12 12 12 13 13 13 12 13 14 15 16 16 15 16 15 14 14 13 12 12 12 12 12 13 1625 12 11 11 11 12 12 11 11 12 14 16 17 18 17 18 17 16 15 14 14 14 12 13 14 14 1826 13 11 10 10 10 11 11 11 12 14 14 16 18 18 18 17 16 15 14 14 14 13 13 13 14 1827 13 13 13 13 13 13 13 12 13 15 16 15 17 16 16 17 16 15 14 14 13 12 11 11 14 1728 13 13 13 12 12 11 11 12 12 13 14 14 15 16 16 16 15 14 13 11 12 13 13 12 13 1629 12 12 13 13 13 13 13 13 14 14 14 14 14 14 14 14 14 14 14 14 14 14 14 15 14 1530 14 14 14 15 14 15 14 14 15 15 16 16 16 17 17 17 16 15 14 14 13 13 13 13 15 1731 13 13 13 13 12 12 12 13 13 14 16 17 16 16 17 17 16 15 13 12 12 12 11 10 14 17

Mean 12 12 12 12 12 12 11 12 12 14 15 16 16 17 17 16 16 15 14 14 13 13 13 12 14

Max 16 16 16 16 15 15 15 14 15 16 18 19 21 22 23 23 23 20 18 18 16 16 16 16 16 23

POLLUTANT:

33 of 53


RELATIVE HUMIDITY HOURLY MEAN -%


1 91 90 89 90 89 86 86 85 85 75 75 64 58 58 64 64 60 70 78 81 83 84 85 86 78 912 88 89 84 82 82 87 88 89 89 87 84 84 86 86 86 88 87 87 89 90 90 90 90 89 87 903 90 90 90 90 90 90 86 84 81 76 71 72 65 68 67 70 72 78 84 85 87 89 90 91 82 914 92 92 93 93 93 93 93 94 94 93 87 74 67 68 62 63 65 72 79 79 82 84 90 92 83 945 92 92 91 92 89 88 87 85 87 88 88 86 82 79 76 76 81 89 92 92 90 90 91 92 87 926 91 92 91 90 90 90 90 89 88 87 86 84 82 81 86 90 91 92 92 93 93 93 93 93 89 937 94 93 93 92 92 91 90 89 89 84 72 67 62 60 62 66 71 79 86 88 89 89 90 90 82 948 90 89 89 90 90 92 92 92 92 91 88 82 79 77 78 80 80 84 87 89 90 90 91 91 87 929 91 92 93 93 94 94 94 94 94 94 92 88 78 71 68 71 77 83 85 90 93 94 94 94 88 94

10 94 95 95 95 95 95 95 94 93 90 84 77 71 69 72 74 77 82 85 88 89 89 90 91 87 9511 92 92 93 93 94 93 94 94 94 94 90 81 76 73 71 70 70 75 80 78 79 81 82 86 84 9412 86 87 89 91 90 88 85 84 82 77 72 70 68 67 68 67 66 70 74 79 79 80 82 85 79 9113 89 90 91 92 93 93 94 94 94 91 83 75 67 65 67 71 73 82 88 89 89 90 91 92 85 9414 92 92 93 93 93 93 93 94 94 94 92 92 88 80 67 63 63 69 77 80 83 88 89 90 86 9415 89 90 91 92 92 92 93 92 91 84 76 69 69 70 71 71 77 83 84 86 87 88 90 92 84 9316 93 93 94 94 94 94 95 95 95 94 90 82 77 76 77 77 77 82 87 90 90 90 92 93 88 9517 93 93 93 93 92 92 92 92 91 88 83 77 78 78 74 76 78 81 83 84 85 86 87 87 86 9318 87 87 88 88 89 88 89 89 89 88 90 90 91 90 90 90 90 90 91 91 91 91 91 91 90 9119 90 90 88 80 74 75 78 81 80 72 71 76 82 71 68 65 72 69 67 68 66 61 60 65 74 9020 70 69 76 77 81 79 75 78 74 69 65 57 55 57 56 57 59 64 69 73 72 71 71 75 69 8121 75 74 71 75 72 73 74 70 65 58 54 34 26 24 25 25 28 38 40 37 51 62 70 71 54 7522 76 72 84 90 92 92 92 91 90 90 87 83 78 74 77 81 84 86 86 89 90 90 90 89 86 9223 88 88 88 90 90 91 90 91 90 85 87 84 77 71 68 68 66 66 72 75 78 80 79 72 81 9124 72 80 84 81 77 78 81 84 82 79 76 71 72 79 75 76 80 81 82 87 89 89 89 89 81 8925 89 89 90 91 92 92 92 91 91 86 80 73 70 72 70 72 77 83 85 86 85 87 85 84 84 9226 86 88 90 91 92 91 90 90 88 82 83 77 73 74 72 78 77 82 86 88 86 85 88 89 84 9227 87 87 86 88 89 89 88 90 90 79 78 86 80 82 79 77 83 87 90 91 92 92 93 93 87 9328 93 93 93 94 94 94 94 94 94 94 90 82 79 76 73 71 75 76 81 86 88 86 86 88 86 9429 89 90 89 86 85 85 86 87 87 86 84 83 84 84 86 88 87 86 87 86 87 88 87 87 86 9030 88 87 87 85 87 88 86 85 84 82 79 80 76 72 67 67 68 72 77 79 85 86 85 85 81 8831 85 86 87 88 89 88 87 87 86 83 76 68 70 68 66 66 68 73 81 85 87 87 89 90 81 90

Mean 88 88 89 89 89 89 89 89 88 85 81 76 73 72 71 72 74 78 81 83 85 85 86 87 83

Max 94 95 95 95 95 95 95 95 95 94 92 92 91 90 90 90 91 92 92 93 93 94 94 94 90 95

POLLUTANT:

34 of 53


SOLAR RADIATION HOURLY MEAN - W.m-2


1 14 13 13 13 11 14 15 15 40 151 190 414 422 431 294 230 124 22 9 2 2 2 4 13 102 4312 15 15 14 9 7 7 7 12 42 138 212 195 123 151 116 89 52 15 15 15 14 11 10 8 54 2123 8 13 15 15 15 13 9 11 28 91 145 224 396 431 368 258 124 17 1 6 14 15 15 10 93 4314 2 2 2 5 14 15 15 13 65 213 220 418 407 301 336 220 108 12 3 4 5 12 15 15 101 4185 15 13 7 5 3 10 14 15 30 67 139 154 149 212 221 179 129 15 13 5 6 4 5 11 59 2216 15 15 14 10 8 8 8 12 37 76 78 157 192 198 121 99 30 15 15 15 13 11 11 9 49 1987 10 13 15 15 15 13 7 10 54 173 228 412 402 438 367 256 119 15 2 4 13 15 15 13 109 4388 5 4 3 8 8 15 15 15 42 77 175 388 411 406 235 180 118 25 5 1 2 2 5 14 90 4119 15 15 13 12 12 11 12 14 48 125 199 419 442 432 387 273 142 29 15 15 12 10 9 5 111 442

10 6 14 15 15 14 7 6 11 75 213 250 427 474 447 397 279 144 23 4 13 15 15 13 4 120 47411 3 2 3 10 15 15 14 11 39 120 187 217 232 261 224 230 140 22 6 4 7 14 15 15 75 26112 14 6 4 9 9 9 15 15 75 211 259 422 456 437 397 279 146 29 13 4 2 3 2 7 118 45613 15 15 14 5 1 1 2 12 70 225 262 428 470 444 395 275 144 28 15 14 5 3 2 2 119 47014 10 15 15 12 2 2 1 9 49 164 231 313 346 237 255 169 156 30 15 14 4 1 2 3 86 34615 11 15 15 9 2 1 0 8 71 205 259 416 431 431 387 271 138 28 15 14 8 1 1 2 114 43116 5 13 15 15 14 10 10 12 36 113 208 329 383 212 155 207 133 23 6 15 15 15 10 3 82 38317 8 5 7 12 15 15 14 12 37 109 241 291 153 200 374 171 67 12 3 2 7 14 15 15 75 37418 13 4 2 2 3 9 15 15 37 82 94 87 101 114 103 74 55 16 12 5 5 4 3 9 36 11419 15 15 15 13 5 4 4 9 43 204 272 343 286 371 351 251 95 15 15 15 15 11 2 2 99 37120 2 3 11 15 15 12 2 6 79 224 288 448 483 473 414 308 171 31 5 13 15 12 4 - 132 48321 - - - - - - - - 80 226 282 452 483 477 415 303 161 24 - 4 3 9 6 - - -22 - - - 5 15 15 15 12 43 75 140 213 331 362 211 105 46 11 1 8 11 14 15 15 79 36223 14 9 6 10 11 12 14 15 19 179 30 76 231 259 273 184 84 25 14 9 12 5 8 13 63 27324 15 15 14 11 5 4 6 13 40 153 287 428 332 213 295 156 100 24 15 15 11 3 2 2 90 42825 3 12 15 15 13 3 2 9 81 246 219 423 320 270 307 166 51 14 10 15 15 15 12 6 93 42326 3 2 3 12 15 15 13 12 91 229 287 452 483 480 419 316 172 32 0 1 5 12 14 15 128 48327 9 1 0 1 2 10 15 15 91 220 288 415 469 446 396 279 149 30 9 1 2 2 4 13 119 46928 15 15 15 12 11 11 11 13 37 98 137 118 144 191 184 155 70 18 15 15 11 5 2 2 54 19129 2 2 4 9 15 15 15 14 36 58 115 165 77 87 79 75 35 14 9 8 7 13 15 15 37 16530 15 12 6 3 3 5 13 23 52 205 283 297 380 407 303 303 164 35 15 7 6 11 4 7 107 40731 14 15 15 14 7 5 7 13 50 120 219 417 274 400 404 327 181 39 14 15 15 10 2 2 107 417

Mean 10 10 10 10 10 10 10 13 52 155 207 321 332 330 296 215 114 22 10 9 9 9 8 9 92

Max 15 15 15 15 15 15 15 23 91 246 288 452 483 480 419 327 181 39 15 15 15 15 15 15 132 483

POLLUTANT:

35 of 53



APPENDIX 2: SUMMARY TABLE OF HOURLY MEANS (VREDENBURG)

36 of 53

AS1138 APPENDIX 1: VREDENBURG AMBIENT AIR QUALITY DATA - JULY 2019

SULPHUR DIOXIDE HOURLY MEAN CONCENTRATIONS - ppb


1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 02 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 03 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 04 0 0 0 0 0 0 1 1 0 0 0 0 0 - - - - 0 0 0 0 0 0 0 0 15 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 06 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 07 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 08 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 09 0 0 0 0 0 0 0 1 1 1 1 0 0 0 0 0 0 1 1 2 1 1 0 0 0 2

10 0 0 0 0 0 0 0 0 1 1 1 0 0 0 1 2 1 1 1 5 8 3 2 2 1 811 2 2 1 1 1 1 1 2 2 2 2 1 1 1 0 0 0 0 0 0 0 2 1 1 1 212 1 1 0 1 0 1 1 1 1 3 3 1 - 2 1 1 1 1 1 2 2 1 0 1 1 313 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 1 1 1 1 3 3 3 8 2 1 814 1 1 1 1 1 0 0 0 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 115 0 0 0 0 0 0 1 1 2 1 1 1 1 1 1 0 0 0 1 0 2 2 1 1 1 216 1 1 1 1 1 1 1 2 1 1 1 1 1 1 0 0 0 0 0 0 0 1 0 0 1 217 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 018 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 019 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 020 0 0 0 0 0 0 1 1 1 1 1 0 0 0 0 0 0 0 1 0 1 0 0 0 0 121 0 0 0 0 0 0 0 0 0 1 1 1 1 0 0 0 0 1 2 2 2 2 1 1 1 222 1 1 0 0 0 1 1 0 0 1 1 0 1 1 1 1 1 1 0 0 0 0 0 0 1 123 1 0 1 1 0 0 1 1 1 0 1 0 1 1 1 1 1 0 0 0 0 0 0 0 1 124 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 125 0 0 0 0 0 0 0 0 0 0 1 1 0 1 1 0 0 0 0 0 0 1 1 0 0 126 0 0 0 0 0 0 0 1 1 1 1 1 0 0 1 1 1 1 1 1 4 3 3 3 1 427 6 3 3 2 2 2 2 3 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 2 628 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 1 1 1 129 1 1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 1 0 0 0 1 130 1 0 0 1 1 0 1 1 0 0 0 1 0 1 0 1 0 1 0 0 0 0 0 0 0 131 0 0 0 0 0 0 0 1 1 0 1 0 1 0 0 0 0 1 0 1 1 1 1 1 0 1

Mean 1 0 0 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 0 0

Max 6 3 3 2 2 2 2 3 2 3 3 2 2 2 2 2 1 1 2 5 8 3 8 3 2 8

POLLUTANT:

37 of 53


SULPHUR DIOXIDE MAX 10-MIN CONCENTRATIONS - ppb


1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 02 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 03 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 04 0 0 0 0 0 0 1 2 1 0 0 0 0 - - - - 0 0 0 0 0 0 0 0 25 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 06 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 07 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 08 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 09 0 0 0 0 0 0 1 1 2 1 1 1 0 0 0 0 0 1 2 3 2 1 0 0 1 3

10 0 0 0 0 0 0 0 1 1 1 1 0 0 0 1 2 1 1 1 11 13 3 2 2 2 1311 3 2 1 1 1 1 2 3 2 3 2 1 1 1 1 0 0 0 1 0 0 2 2 1 1 312 1 1 0 2 0 1 1 1 2 5 7 1 1 2 2 1 1 1 1 2 2 1 1 1 2 713 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 1 1 1 2 4 3 4 18 2 2 1814 1 2 1 1 1 1 0 0 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 215 0 0 0 0 0 0 1 2 3 1 1 1 1 1 1 0 0 0 2 0 2 3 2 2 1 316 1 1 1 2 2 1 1 2 2 1 1 1 1 1 1 1 0 1 0 0 0 1 1 1 1 217 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 118 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 019 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 1 0 120 0 0 0 0 0 1 1 1 1 1 1 1 0 0 0 0 0 0 1 1 2 1 0 0 1 221 0 0 0 0 0 0 0 0 0 1 1 1 1 0 0 0 1 1 2 2 2 2 1 1 1 222 1 1 0 0 0 1 1 1 0 1 1 0 1 1 1 1 1 1 1 1 0 0 0 0 1 123 1 1 1 1 1 0 1 1 1 1 1 0 1 1 1 1 1 1 1 0 0 0 0 1 1 124 0 0 0 0 0 0 0 1 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 125 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 0 0 1 1 1 0 1 126 0 0 0 0 0 0 1 1 1 1 1 1 0 1 2 2 2 1 1 2 5 4 3 4 1 527 8 4 3 2 2 2 2 3 3 3 2 2 2 3 2 2 1 1 2 1 1 1 2 1 2 828 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 129 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 130 1 0 1 1 1 1 1 1 1 1 1 1 0 1 0 1 1 1 0 0 0 0 0 0 1 131 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 1 1 1 1 2 1 2 1 2

Mean 1 0 0 0 0 0 1 1 1 1 1 1 0 1 1 1 0 0 1 1 1 1 1 1 1

Max 8 4 3 2 2 2 2 3 3 5 7 2 2 3 2 2 2 1 2 11 13 4 18 4 2 18

POLLUTANT:

38 of 53


NITROGEN OXIDE HOURLY MEAN CONCENTRATIONS - ppb


1 0 0 0 0 0 0 0 0 1 1 1 1 1 0 0 0 1 2 2 1 1 0 0 0 1 22 0 0 0 0 0 0 1 2 1 1 1 1 1 1 1 1 1 2 1 1 0 0 1 0 1 23 0 0 0 0 0 1 1 3 1 1 1 1 2 1 1 0 0 0 0 0 0 0 0 0 1 34 0 0 0 0 0 1 19 24 5 2 1 1 1 - - - - 3 2 2 1 1 0 0 3 245 0 0 0 0 0 0 1 2 5 2 1 2 2 2 1 1 2 1 1 0 1 0 1 2 1 56 1 1 0 0 0 0 1 1 2 2 2 2 2 1 1 1 1 1 1 1 1 1 0 0 1 27 0 1 0 0 0 0 0 0 1 1 1 1 0 1 1 0 1 2 1 1 1 1 1 0 1 28 0 1 0 0 0 0 1 2 2 3 2 2 2 2 2 1 3 3 2 1 0 1 1 1 1 39 0 0 0 0 1 1 13 31 45 21 9 6 4 3 2 2 2 2 6 2 1 1 1 1 6 45

10 0 0 0 0 1 0 1 12 11 15 5 4 3 4 3 3 2 2 1 2 1 1 0 1 3 1511 0 0 1 1 1 2 5 20 11 3 2 2 1 1 1 1 1 1 1 1 0 1 1 0 2 2012 0 1 0 0 1 1 1 4 2 4 2 3 - 2 2 2 2 1 1 0 1 2 3 0 2 413 0 1 1 1 0 1 2 3 4 2 3 2 1 2 1 1 1 1 1 0 1 0 1 2 1 414 1 0 0 0 1 1 1 1 3 3 3 2 1 1 1 1 1 0 0 0 1 1 1 1 1 315 1 0 1 0 0 1 6 24 93 6 3 4 2 2 2 1 1 1 1 1 1 1 0 1 6 9316 0 0 0 0 1 1 11 56 19 1 1 1 2 3 2 3 3 2 2 2 1 1 0 1 5 5617 0 0 1 1 0 1 2 4 1 1 1 1 1 2 2 1 2 2 1 1 1 0 0 1 1 418 0 0 0 0 0 1 1 3 1 1 1 1 1 1 1 1 2 2 1 1 0 1 0 0 1 319 0 1 0 0 0 0 0 2 1 1 1 1 1 1 2 1 1 1 0 0 0 0 0 0 1 220 1 1 0 0 1 0 1 1 4 4 3 2 2 2 1 1 1 2 2 2 1 1 1 2 2 421 1 1 1 1 0 0 1 1 1 4 3 2 1 1 1 1 2 2 2 3 2 1 1 0 1 422 1 0 0 1 1 1 2 4 1 1 1 1 1 1 2 1 1 2 1 1 1 1 0 0 1 423 0 0 0 0 0 0 1 2 1 1 1 1 1 1 1 1 1 1 1 0 1 0 0 0 1 224 0 0 1 0 1 1 1 4 1 1 1 1 1 1 2 1 2 3 2 1 1 1 1 1 1 425 0 0 0 1 1 1 2 9 4 2 1 2 1 1 2 2 3 2 2 2 1 1 2 0 2 926 0 0 1 0 1 1 3 13 11 6 5 3 2 2 3 2 2 1 1 1 2 1 1 1 3 1327 0 1 0 1 1 1 1 3 8 7 4 6 5 5 4 2 1 1 0 1 6 7 12 10 4 1228 2 2 1 0 1 0 1 1 1 2 1 1 2 1 1 1 1 1 1 1 1 1 0 1 1 229 1 0 0 1 1 1 1 3 2 1 1 1 1 1 2 1 1 2 1 1 1 0 1 0 1 330 0 0 0 0 0 0 1 2 1 1 1 1 1 1 1 1 1 1 1 2 2 0 0 1 1 231 0 0 0 0 0 0 0 10 3 2 2 1 1 1 1 1 1 1 1 1 1 1 0 1 1 10

Mean 0 0 0 0 0 1 3 8 8 3 2 2 2 2 2 1 1 2 1 1 1 1 1 1 2

Max 2 2 1 1 1 2 19 56 93 21 9 6 5 5 4 3 3 3 6 3 6 7 12 10 6 93

POLLUTANT:

39 of 53


NITROGEN DIOXIDE HOURLY MEAN CONCENTRATIONS - ppb


1 0 0 0 0 0 1 1 2 4 2 2 1 1 1 1 1 1 4 6 3 1 1 1 1 1 62 1 0 1 1 0 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 23 1 1 1 1 1 1 2 3 2 2 2 1 2 1 1 1 1 3 6 5 2 6 3 3 2 64 3 2 1 1 1 4 12 18 10 4 2 1 1 - - - - 3 3 4 3 2 2 2 4 185 2 2 3 4 5 4 6 11 13 6 3 4 3 2 2 2 2 2 3 2 2 2 3 7 4 136 5 3 2 2 2 2 2 3 3 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1 2 57 2 1 1 1 1 1 1 2 4 2 1 1 1 1 1 1 2 2 5 2 2 2 3 2 2 58 1 1 1 1 1 1 1 2 1 2 2 1 1 1 1 1 2 3 5 4 4 5 2 3 2 59 1 1 1 2 2 5 16 27 31 20 10 7 4 3 4 4 5 11 15 12 4 5 4 4 8 31

10 4 2 4 1 1 2 5 18 16 14 6 4 4 5 5 5 7 10 12 19 13 12 9 15 8 1911 11 16 16 20 16 13 14 22 19 8 4 3 2 2 2 2 3 6 11 4 3 8 8 8 9 2212 8 5 7 5 2 3 6 14 7 7 5 4 4 4 4 5 5 6 6 7 8 7 7 4 6 1413 4 7 10 10 10 11 9 11 7 3 3 3 2 2 2 3 4 6 7 9 7 8 10 14 7 1414 12 5 3 2 3 4 7 8 7 5 3 3 2 1 1 1 1 2 3 3 5 8 6 6 4 1215 3 3 4 4 3 6 15 21 38 13 6 6 3 3 3 3 4 5 9 7 10 4 6 5 8 3816 3 4 4 5 5 8 12 20 14 3 2 1 3 3 3 3 3 4 6 4 4 3 2 2 5 2017 1 1 1 1 1 1 1 3 1 1 1 1 1 2 1 1 2 2 2 1 1 1 1 1 1 318 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 219 1 1 1 1 1 1 2 5 4 2 1 1 1 1 2 2 2 4 5 4 4 2 2 2 2 520 2 2 3 3 3 6 7 10 12 8 5 3 3 2 2 2 2 6 14 12 10 7 6 6 6 1421 5 3 2 1 1 1 1 1 2 4 3 2 1 1 1 1 1 3 3 6 9 5 4 4 3 922 2 2 1 1 1 2 2 3 2 3 1 1 1 1 1 1 1 1 1 1 1 1 0 0 1 323 1 0 0 0 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 1 124 0 0 0 0 0 1 2 5 3 1 1 1 2 1 1 1 1 2 1 1 1 1 1 2 1 525 0 1 1 0 1 1 2 9 5 1 1 1 1 1 1 1 2 2 2 3 4 5 11 2 2 1126 2 2 2 2 3 4 11 22 18 10 6 4 3 3 5 5 6 8 8 8 12 12 13 14 8 2227 15 14 11 9 10 7 7 12 15 12 7 10 8 10 9 5 5 6 9 9 18 20 21 18 11 2128 11 10 7 11 10 6 3 3 3 3 3 3 3 2 2 2 3 2 3 1 1 1 1 1 4 1129 1 1 1 1 1 1 1 2 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 230 1 0 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 2 3 4 3 1 1 1 1 431 1 1 1 0 1 1 3 13 10 3 1 1 1 1 1 1 1 3 9 8 9 6 6 8 4 13

Mean 3 3 3 3 3 3 5 9 8 5 3 2 2 2 2 2 2 4 5 5 5 4 4 4 4

Max 15 16 16 20 16 13 16 27 38 20 10 10 8 10 9 5 7 11 15 19 18 20 21 18 11 38

POLLUTANT:

40 of 53


OXIDES OF NITROGEN HOURLY MEAN CONCENTRATIONS - ppb


1 0 0 1 0 1 1 1 2 4 2 2 1 1 1 1 1 1 5 8 4 1 1 1 1 2 82 1 0 1 1 0 1 1 3 2 2 2 1 2 2 1 2 2 3 2 1 1 1 1 1 1 33 1 1 1 1 1 1 3 5 3 3 3 2 3 2 2 1 1 3 6 6 2 6 3 3 3 64 3 2 1 1 1 4 31 41 16 6 3 2 2 - - - - 5 4 6 3 3 2 2 7 415 2 2 3 4 5 4 7 13 18 9 4 6 5 3 3 3 4 3 4 2 2 3 3 9 5 186 6 3 2 2 2 2 2 4 4 4 3 4 3 3 2 2 2 2 2 1 2 1 1 1 3 67 2 2 1 1 1 1 1 2 5 2 1 1 1 1 1 1 3 4 6 3 3 2 3 2 2 68 1 1 1 1 1 1 2 3 3 5 3 3 3 3 3 2 5 5 7 5 4 6 3 3 3 79 1 1 1 2 2 6 28 57 76 41 19 14 8 6 6 6 7 12 21 14 4 5 4 4 14 76

10 4 2 4 2 1 2 6 30 27 29 11 9 7 9 9 9 10 11 13 21 14 12 9 16 11 3011 12 16 16 21 17 15 20 42 29 11 6 5 3 3 3 3 4 6 12 4 4 9 9 8 12 4212 8 5 7 6 3 3 7 18 10 11 7 7 - 7 6 6 6 7 7 7 9 9 10 4 7 1813 5 7 10 10 10 12 10 14 11 5 5 4 3 4 3 4 5 6 8 10 8 9 11 16 8 1614 13 5 3 2 3 4 9 9 11 8 6 5 2 2 2 2 1 2 3 3 6 9 6 6 5 1315 4 3 4 4 3 7 22 45 131 19 10 11 5 5 5 4 5 6 9 7 11 4 6 6 14 13116 3 4 4 5 6 9 23 76 34 4 3 2 5 6 5 5 6 6 8 5 4 4 2 2 10 7617 1 1 2 1 1 2 3 7 3 2 2 2 3 3 3 2 4 3 3 1 1 1 1 1 2 718 1 1 1 1 1 1 2 5 2 2 2 2 1 2 2 2 3 3 2 2 1 1 1 1 2 519 1 1 1 1 1 1 2 6 4 3 1 1 1 2 4 3 3 5 5 4 4 2 1 2 2 620 2 2 3 3 4 6 7 11 16 12 8 4 5 4 3 3 3 7 16 14 11 7 7 9 7 1621 5 3 2 1 1 1 2 1 3 8 6 3 2 2 2 1 3 4 5 10 10 5 5 5 4 1022 2 2 1 2 2 2 4 7 3 4 2 2 2 2 2 2 2 3 2 1 1 1 0 0 2 723 0 1 0 1 1 1 1 3 2 1 1 1 1 1 2 1 2 1 1 1 1 1 0 0 1 324 0 0 1 0 1 1 3 9 4 2 2 2 3 3 3 2 3 4 3 2 2 1 1 2 2 925 0 1 1 1 1 2 4 18 10 3 2 3 3 3 3 2 5 4 4 5 5 6 13 3 4 1826 2 2 3 2 3 5 14 35 29 16 11 7 6 4 7 7 9 9 9 9 13 12 13 15 10 3527 15 14 11 9 10 8 9 15 23 19 11 16 13 15 12 7 6 6 9 9 24 27 33 28 15 3328 13 11 9 12 11 6 4 3 4 5 4 4 4 3 3 3 4 4 4 2 2 1 1 2 5 1329 2 1 1 1 1 1 3 5 3 3 2 2 2 2 3 2 2 3 2 1 1 1 1 1 2 530 1 0 1 1 1 1 2 3 1 2 1 1 1 2 2 2 2 3 4 6 4 1 1 1 2 631 1 1 1 1 1 1 3 23 13 5 3 2 2 2 1 1 1 3 10 9 9 7 6 9 5 23

Mean 4 3 3 3 3 4 8 17 16 8 5 4 3 4 3 3 4 5 6 6 5 5 5 5 6

Max 15 16 16 21 17 15 31 76 131 41 19 16 13 15 12 9 10 12 21 21 24 27 33 28 15 131

POLLUTANT:

41 of 53


OZONE HOURLY MEAN CONCENTRATIONS - ppb


1 34 35 35 36 34 33 33 31 28 29 32 33 34 35 34 34 35 27 19 25 30 32 33 33 32 362 31 32 31 30 31 31 31 30 30 29 29 29 30 28 29 29 30 30 29 30 30 31 31 30 30 323 29 28 28 28 27 27 28 26 27 28 28 28 30 30 31 31 31 26 24 26 29 22 28 24 28 314 21 21 23 25 24 22 13 7 15 21 28 30 30 - - - - 23 21 20 23 24 23 29 22 305 29 27 23 20 18 21 20 17 11 18 24 23 24 26 27 27 26 23 22 26 26 23 22 14 22 296 17 22 22 21 23 22 21 21 22 24 24 21 23 24 25 26 27 27 28 28 27 25 24 24 24 287 22 22 23 22 22 22 24 25 21 26 28 29 30 30 30 30 27 23 15 23 21 21 19 20 24 308 21 21 21 22 23 24 23 23 22 21 21 21 21 21 23 24 22 22 16 16 18 15 18 18 21 249 23 23 19 15 20 12 4 3 4 10 16 20 19 20 22 21 20 15 9 14 23 19 21 21 16 23

10 21 24 18 21 22 22 18 7 9 11 18 19 21 22 22 24 24 22 20 14 15 16 18 13 18 2411 14 13 13 7 6 7 9 4 9 16 21 24 27 28 27 28 27 24 17 25 25 18 19 17 18 2812 12 15 15 16 20 20 18 13 19 20 24 28 - 29 31 32 32 30 29 27 23 20 22 26 23 3213 22 16 13 11 14 12 12 10 13 16 17 20 22 22 26 28 31 31 31 26 27 24 18 12 20 3114 11 21 24 26 20 17 12 14 15 18 20 20 25 27 28 29 31 28 24 25 23 19 20 16 21 3115 21 19 18 22 24 22 14 12 4 22 27 25 28 28 29 28 27 27 21 22 18 23 19 20 22 2916 22 21 19 19 18 14 5 3 7 21 24 28 22 21 24 27 26 22 18 21 21 20 24 22 20 2817 26 27 26 27 27 29 28 27 27 26 26 28 28 30 31 33 33 32 32 32 32 32 31 30 29 3318 30 29 28 27 27 26 24 24 24 24 24 24 24 24 24 26 25 25 25 24 24 24 23 23 25 3019 23 24 29 30 30 29 28 26 25 28 31 31 31 31 31 31 30 28 27 27 26 29 29 29 28 3120 28 26 24 24 23 21 20 17 19 23 26 29 30 31 31 31 31 26 18 19 19 21 20 17 24 3121 19 21 22 24 25 24 23 23 22 20 22 24 28 28 28 27 26 23 22 19 16 17 17 18 22 2822 20 18 17 18 20 19 18 18 20 21 23 25 27 28 27 27 28 28 29 29 29 29 29 30 24 3023 30 30 30 30 30 30 30 30 30 31 32 34 34 34 34 33 32 32 33 33 32 32 31 31 32 3424 31 31 30 31 31 28 27 24 26 28 30 31 31 31 31 31 30 29 29 28 28 29 27 27 29 3125 28 27 25 24 27 24 23 18 20 25 29 29 29 29 30 31 30 27 26 26 23 20 12 24 25 3126 24 25 20 22 23 21 14 8 12 20 21 26 29 31 29 30 32 30 30 29 22 22 23 21 24 3227 20 20 23 24 23 24 23 18 16 21 29 24 28 29 32 33 32 34 32 32 19 15 13 13 24 3428 17 16 22 20 19 23 29 32 32 33 38 39 42 43 44 44 45 45 44 47 47 47 47 45 36 4729 44 48 48 51 52 52 51 49 50 49 49 48 48 50 52 52 53 53 55 56 57 57 57 57 52 5730 57 54 53 53 53 53 53 53 54 54 54 54 54 53 54 55 55 54 49 45 47 51 51 49 53 5731 48 48 49 52 51 51 49 40 42 48 53 56 57 56 57 58 58 55 46 49 48 48 48 43 50 58

Mean 26 26 26 26 26 25 23 21 22 25 28 29 30 31 31 32 32 30 27 28 27 27 26 26 27

Max 57 54 53 53 53 53 53 53 54 54 54 56 57 56 57 58 58 55 55 56 57 57 57 57 53 58

POLLUTANT:

42 of 53


OZONE EIGHT-HOURLY MEAN CONCENTRATIONS - ppb


1 34 33 32 32 32 32 32 32 33 33 33 31 30 30 30 29 29 29 29 31 31 32 31 31 31 342 31 31 30 30 30 30 29 29 29 29 29 29 29 29 30 30 30 30 30 30 29 29 29 28 30 313 28 27 27 27 27 28 28 28 29 30 29 29 29 29 28 27 27 25 24 24 24 23 23 21 27 304 19 19 19 19 20 20 21 22 23 24 25 24 24 - - - - 24 24 24 24 24 24 23 22 255 22 20 19 19 19 20 20 21 22 24 25 24 25 26 25 24 23 22 21 21 21 21 20 20 22 266 21 22 22 22 22 22 22 23 23 24 24 25 26 26 27 27 26 26 25 24 23 23 22 22 24 277 23 23 23 23 24 26 27 28 28 29 29 27 26 25 24 22 21 20 20 21 21 21 21 22 24 298 22 22 22 22 22 22 21 21 22 22 22 21 21 20 19 19 18 18 18 19 19 19 18 17 20 229 15 12 11 10 11 11 12 14 17 19 19 18 18 18 18 18 18 18 19 20 21 21 21 21 17 21

10 19 18 16 16 16 16 16 16 18 20 22 22 21 20 20 19 18 17 15 15 14 13 12 10 17 2211 9 8 9 10 12 14 17 19 22 24 26 25 26 25 24 23 21 20 18 18 17 16 17 17 18 2612 16 17 18 19 20 21 23 24 27 28 30 30 - 29 28 27 26 25 23 21 19 18 17 16 23 3013 14 13 13 13 14 15 17 18 20 23 24 27 27 28 28 27 25 22 21 20 20 19 19 18 20 2814 18 19 18 18 17 17 19 21 22 24 26 27 27 27 26 25 23 22 21 20 20 20 20 20 22 2715 19 17 17 18 19 19 20 21 23 27 27 27 26 25 24 23 22 21 21 20 20 20 19 17 21 2716 15 13 13 14 15 15 16 19 22 24 24 23 22 22 22 22 22 22 22 23 24 25 26 27 21 2717 27 27 27 27 27 27 28 28 29 29 30 31 32 32 32 32 32 31 31 30 30 29 29 28 29 3218 27 26 26 25 24 24 24 24 24 24 24 25 24 24 24 24 24 24 24 24 25 26 27 27 25 2719 28 28 28 28 28 29 29 29 30 30 30 30 30 29 29 29 28 28 28 27 27 27 26 24 28 3020 23 22 21 22 22 23 24 26 28 29 29 29 27 26 24 23 21 20 19 20 20 21 22 22 23 2921 23 23 23 23 23 23 24 24 25 26 26 26 25 23 22 21 20 19 18 18 18 18 18 18 22 2622 18 18 19 20 20 21 22 23 24 26 27 27 28 28 28 28 29 29 29 29 30 30 30 30 26 3023 30 30 30 30 31 31 32 32 33 33 33 33 33 33 33 32 32 32 32 31 31 31 31 30 32 3324 29 29 28 28 28 28 29 29 30 30 30 30 30 29 29 29 28 28 28 27 27 27 26 26 28 3025 24 23 23 24 24 24 25 26 28 29 29 29 29 28 27 24 23 23 22 22 21 21 22 22 25 2926 20 18 17 18 18 19 20 22 24 27 28 29 30 29 28 27 26 24 23 22 22 22 22 22 23 3027 22 21 21 22 22 23 23 24 27 29 30 31 31 30 29 26 23 22 19 18 17 17 18 20 24 3128 22 24 26 28 31 33 36 38 39 41 42 43 44 45 45 46 46 46 46 47 47 48 48 49 40 4929 49 50 50 51 50 49 49 49 50 50 51 52 53 54 54 55 56 56 56 56 56 55 55 54 53 5630 54 53 53 54 54 54 54 54 54 54 54 54 52 52 51 51 51 49 49 49 49 50 50 49 52 5431 48 47 48 48 49 49 50 51 54 56 56 56 55 54 53 51 49 - - - - - - - - -

Mean 25 24 24 25 25 25 26 27 28 30 30 30 30 30 29 29 28 26 26 26 26 26 25 25 27

Max 54 53 53 54 54 54 54 54 54 56 56 56 55 54 54 55 56 56 56 56 56 55 55 54 53 56

POLLUTANT:

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1 - - - - - - - - - - - - - - - - - - - - - - - - - -2 - - - - - - - - - - - - - - - - - - - - - - - - - -3 - - - - - - - - - - - - - - - - - - - - - - - - - -4 - - - - - - - - - - - - - - - - - - - - - - - - - -5 - - - - - - - - - - - - - - - - - - - - - - - - - -6 - - - - - - - - - - - - - - - - - - - - - - - - - -7 - - - - - - - - - - - - - - - - - - - - - - - - - -8 - - - - - - - - - - - - - - - - - - - - - - - - - -9 - - - - - - - - - - - - - - - - - - - - - - - - - -

10 - - - - - - - - - - - - - - - - - - - - - - - - - -11 - - - - - - - - - - - - - - - - - - - - - - - - - -12 - - - - - - - - - - - - - - - - - - - - - - - - - -13 - - - - - - - - - - - - - - - - - - - - - - - - - -14 - - - - - - - - - - - - - - - - - - - - - - - - - -15 - - - - - - - - - - - - - - - - - - - - - - - - - -16 - - - - - - - - - - - - - - - - - - - - - - - - - -17 - - - - - - - - - - - - - - - - - - - - - - - - - -18 - - - - - - - - - - - - - - - - - - - - - - - - - -19 - - - - - - - - - - - - - - - - - - - - - - - - - -20 - - - - - - - - - - - - - - - - - - - - - - - - - -21 - - - - - - - - - - - - - - - - - - - - - - - - - -22 - - - - - - - - - - - - - - - - - - - - - - - - - -23 - - - - - - - - - - - - - - - - - - - - - - - - - -24 - - - - - - - - - - - - - - - - - - - - - - - - - -25 - - - - - - - - - - - - - - - - - - - - - - - - - -26 - - - - - - - - - - - - - - - - - - - - - - - - - -27 - - - - - - - - - - - - - - - - - - - - - - - - - -28 - - - - - - - - - - - - - - - - - - - - - - - - - -29 - - - - - - - - - - - - - - - - - - - - - - - - - -30 - - - - - - - - - - - - - - - - - - - - - - - - - -31 - - - - - - - - - - - - - - - - - - - - - - - - - -

Mean - - - - - - - - - - - - - - - - - - - - - - - - -

Max - - - - - - - - - - - - - - - - - - - - - - - - - -

POLLUTANT:

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1 - - - - - - - - - - - - - - - - - - - - - - - - - -2 - - - - - - - - - - - - - - - - - - - - - - - - - -3 - - - - - - - - - - - - - - - - - - - - - - - - - -4 - - - - - - - - - - - - - - - - - - - - - - - - - -5 - - - - - - - - - - - - - - - - - - - - - - - - - -6 - - - - - - - - - - - - - - - - - - - - - - - - - -7 - - - - - - - - - - - - - - - - - - - - - - - - - -8 - - - - - - - - - - - - - - - - - - - - - - - - - -9 - - - - - - - - - - - - - - - - - - - - - - - - - -

10 - - - - - - - - - - - - - - - - - - - - - - - - - -11 - - - - - - - - - - - - - - - - - - - - - - - - - -12 - - - - - - - - - - - - - - - - - - - - - - - - - -13 - - - - - - - - - - - - - - - - - - - - - - - - - -14 - - - - - - - - - - - - - - - - - - - - - - - - - -15 - - - - - - - - - - - - - - - - - - - - - - - - - -16 - - - - - - - - - - - - - - - - - - - - - - - - - -17 - - - - - - - - - - - - - - - - - - - - - - - - - -18 - - - - - - - - - - - - - - - - - - - - - - - - - -19 - - - - - - - - - - - - - - - - - - - - - - - - - -20 - - - - - - - - - - - - - - - - - - - - - - - - - -21 - - - - - - - - - - - - - - - - - - - - - - - - - -22 - - - - - - - - - - - - - - - - - - - - - - - - - -23 - - - - - - - - - - - - - - - - - - - - - - - - - -24 - - - - - - - - - - - - - - - - - - - - - - - - - -25 - - - - - - - - - - - - - - - - - - - - - - - - - -26 - - - - - - - - - - - - - - - - - - - - - - - - - -27 - - - - - - - - - - - - - - - - - - - - - - - - - -28 - - - - - - - - - - - - - - - - - - - - - - - - - -29 - - - - - - - - - - - - - - - - - - - - - - - - - -30 - - - - - - - - - - - - - - - - - - - - - - - - - -31 - - - - - - - - - - - - - - - - - - - - - - - - - -

Mean - - - - - - - - - - - - - - - - - - - - - - - - -

Max - - - - - - - - - - - - - - - - - - - - - - - - - -

POLLUTANT:

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APPENDIX 3: MONITORING METHODOLOGIES

1. CONTINUOUS REAL TIME MONITORS

Continuous real-time monitors are used to measure real-time concentrations of gases. These are usually

one part of an AQMS and often are remote in location and need to be connected in a network as per

Figure A below. Such a system would have the following as a minimum requirement:

• Environmental enclosure

• Inlet manifold

• Analysers

• Calibration

• Meteorological instrumentation

• Data acquisition

• Data reporting

• Communication

• Housekeeping (log book, shelter check sheet, instruments data sheets)

In particular the monitoring station would have the following basic components:

• Monitoring station design

– Housing

– Air inlet system

– Monitoring instrumentation

– Calibration of monitors

– Logging devices

Figure A. A Typical Air Quality Monitoring System Design

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• Monitoring Methods

This section gives an overview of the methods employed in the continuous monitoring of ambient

compounds.

1.1 CO/CO2

CO and CO2 are monitored continuously by non-dispersive infrared photometry.

The non-dispersive infrared photometry process is based upon the absorption of infrared light by

CO or CO2.

1.2 NOX

Oxides of nitrogen are measured continuously by the principle of chemiluninescence.

The air sample is split into two pathways; one to measure NO and the other to measure total NOX.

The intensity of light is measured with a photomultiplier to obtain the concentration of NO. To obtain

NO2 the sample gas is passed through a milly converter.

Measurement is the sum of NO2 and NO, expressed as NOX.

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1.3 SO2/H2S

SO2 and H2S are monitored continuously by pulsed fluorescence.

In this method, air is drawn through a chamber where it is irradiated with pulses of ultra-violet (UV)

light. Any SO2 in the sample is excited to a higher energy level and upon returning to its original

state, light or fluorescence is released. The amount of fluorescence measured is proportional to the

SO2 concentration.

1.4 O3

O3 is monitored continuously using ultra-violet (UV) light absorption.

The sampled air is exposed to UV light which is absorbed by the O3. The amount of UV light

absorbed is proportional to the amount of O3 in the sample; that is, the more UV light is absorbed,

the greater the amount of O3 in the sample.

1.5 PM-10 and PM-2.5

Particulate matter is monitored continuously and intermittently. The Tapered Element Oscillating

Microbalance (TEOM) is the most widely used and continuous PM-10 (or PM-2.5) monitor.

The TEOM draws an air sample through an inlet system that aerodynamically separates particles

of a specified diameter. The air sample then passes through a filter that is attached to a tapered

element in the mass transducer. This tapered element vibrates at its natural frequency. As particles

are deposited onto the filter, the oscillating frequency changes in proportion to the amount of mass

deposited.

1.6 Meteorological Parameters

Meteorological parameters such as wind direction, wind speed, temperature, relative humidity, solar

radiation and atmospheric pressure are monitored in order to assist in identifying the sources of

elevated concentration events or episodes.

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2. QUALITY CONTROL REQUIREMENTS

Quality control of the monitored data is important to verify that the data reported is accurate and of a low

uncertainty. Each monitoring station or passive monitoring site should be treated as if it were a

laboratory. A laboratory is defined as “A place equipped for testing and analysis” or “A place providing

the opportunity for observation in a field of study”.

It must be noted that it has been stated by DEA that only air quality data that is accredited will be

accepted by DEA. The definition for accreditation is “the procedure by which an authoritative body gives

formal recognition that a body is competent to carry out specific tasks”. In order to be accredited a

sampling method must have:

• A recognised methodology that competence can be measured against

• A quality system

• Have been audited by a certification body

A relevant quality system for air quality measurements according to SANAS is ISO 17025. This system

provides guidance to laboratories on essential elements for both:

• Quality management

• Technical requirements for the proper operation of a testing laboratory

3. INSTRUMENT CALIBRATION AND FREQUENCY

This section covers the calibration of continuous air quality monitors. The basic requirements based on

the US EPA Red Book are:

• Each analyser must have a dynamic calibration every three months

• This type of calibration must also be carried out on installation, after any repair, if tolerances of

zero/ span are not met and if the analyser is relocated

• Zero and span calibration every two weeks

• Zero check every other week

4. DATA ACQUISITION REQUIREMENTS

This section also refers to an AQMS based on continuous monitoring from a monitoring station and to

the data logging system:

The data logger must:

• Be verified annually

• Output from the analysers must be recorded

• Generate hourly mean concentrations

• Be able to scan at 30 second intervals with a minimum scan period of 1 hour and store this data

• Collect at least 40 minutes of uninterrupted data per hour for a valid average

• Use calculations verified by a statistician

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5. SITE SELECTION

The following quote is noteworthy when considering the location of sites: “Irrespective of how well a

monitoring station is run, if it is not sited correctly data collected will have little value”

As was mentioned earlier sites are selected for one of the following reasons:

• To judge compliance with air quality standards

• To activate emergency control procedures for episodes

• To observe pollution trends throughout a region

• To provide a database for research.

When selecting monitoring sites the following must be considered:

• Economic: Resources must be available for the expensive instrumentation, data retrieval and

evaluation, maintenance and quality assurance and reporting of data

• Security: Problems can arise in this regard that make a site unsuitable when standard measures

are taken into account

• Logistics: Planning, staffing, procurement procedures, training, communications, safety, task

scheduling

• Atmospheric conditions:

o Variability of air pollutants and their transport (effects of buildings, terrain and heat sources)

o Dispersion factors – wind speed, wind direction, atmospheric stability

• Topography: Transport and diffusion of air pollutants are complicated by topographical features

such as valleys or hills

• Pollutant consideration: A sampling site for one pollutant may or may not be suitable for other

pollutants

o For example, monitoring ozone close to primary NO emissions would not provide accurate

pollutant information

• The final placement once a monitoring site has been selected depends on the presence of physical

obstructions, accessibility and availability of utilities.

• Obstructions such as trees and buildings significantly affect the air flow over the monitoring station

and the placement should expose the station to the general air flow of the area to prevent sampling

bias.

• Major roads can produce bias and sites should be 15-60m away unless there are specific

requirements for roadway monitoring. Typically sites would be between 3m and 15m away in this

case.

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6. DATA MANAGEMENT

All monitoring stations produce data that may be used for various reasons as outlined above. The

following should be noted when dealing with this monitoring data and systems should be designed to

accommodate the following:

• A copy of the raw data must always be available

• A record must be kept of any adjustments made

• All multiplication factors/ algorithms/ manipulations on the data must be recorded and reported

• Data must be kept for a minimum of 3 years

• When data is reported the temperature and pressure at which the analyser was last calibrated

must be indicated on the test report

The following points must be considered when preparing a monitoring plan:

• Local authority responsible for monitoring

• Check to see if Province has information about your area

• Check to see whether DEA has information about your area (SAAQIS)

• Do screening study to see which pollutants if any are of concern

• SANS 1929 lets you make management decisions on whether costly continuous monitoring is

needed

• If so focus on quality control, reporting 80% or more of available data

• Use data to manage improvements in air quality

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APPENDIX 4: QUALITY ASSURANCE STATEMENT

Quarterly calibrations (Q2) were conducted on all analysers on the 24th June 2019 for Saldanha station

and 4th July for Vredenburg station, the next quarterly calibrations (Q3) are due in September 2019.

Quality Assurance checks are conducted bi-weekly. SANAS Calibrations were conducted in July 2018

(analysers) and November 2018 (Met Equipment, calibrated annually)

IZS checks were conducted on all analyser.

Inlets systems were cleaned at both station and inlet flow met requirements. All QA/QC checks and

calibrations met the span deviation requirement of



Dynamic Calibrations for Vredenburg July 2019

Source Expected

Conc.

Recorded Adjusted

Error

As Found

Comment Requirement

Nitrogen

Monoxide

400ppb 385ppb 400 ppb -3.7% Adjusted ±15%

Sulphur Dioxide 402ppb 401ppb 401ppb -0.2% Not

Adjusted

±15%

Ozone 400ppb 421ppb 400ppb 5.2% Adjusted ±15%

The SO2, NO2 and O3 concentrations reported are determined by a United States Environmental

Protection Agency (US EPA) equivalent method (EQSA-0495-100, RFNA-1194-099 and EQOA-0992-

087 respectively).

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ambient air quality monitoring report for saldanha bay and ......this report evaluates data...

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