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Newport City Council

LAQM Progress Report 2017 i

Newport City Council 2017 Air Quality Progress Report In fulfillment of Part IV of the Environment Act 1995 Local Air Quality Management September 2017


LAQM Progress Report 2017 ii

Local Authority Officer

Peter Mackintosh Senior Scientific Officer

Department Environmental Health

Address

Law & Regulation Room 719 Civic Centre Godfrey Road Newport NP20 4UR

Telephone 01633 210850

E-mail [email protected]

Report Reference number

Final V1_1

Date September 2017

mailto:[email protected]



Executive Summary

This report covers the 2016 monitoring period. Air quality in Newport has shown little

sign of improvement compared to the previous (2015) round of monitoring. Twenty

five new diffusion tube locations have been added during 2016. Twelve of the

existing fifty five tubes have been relocated making a total of eighty monitoring

locations, and two automatic stations.

Of these new locations several new exceedances have been encountered which

include: Caerphilly Road, Cefn Road and George Street for which new AQMAs

should be considered.

Monitoring sites along the M4 corridor appear to have been impacted by the Brynglas

Tunnel works. A marked improvement in air quality along some sections of the M4

may be attributed to the night closures, reducing the overall volume of road traffic

emissions.

During 2016 work has continued on drafting a revised air quality action plan which

will be ready for public consultation in due course.

The results of this report recommend the following actions:

1. Declare New AQMAs for:

a. Cefn Road

b. Caerphilly Road

c. George Street

Revise AQMA boundaries for:

d. Caerleon

e. Chepstow Road

f. Malpas Road

2. Public consultation on a draft air quality action plan.

3. Continue the review and development of the air quality monitoring

programme.



Table of Contents

Executive Summary .................................................................................................. i

1 Introduction ...................................................................................................... 1

1.1 Description of Local Authority Area ........................................................... 1

1.2 Purpose of Progress Report ..................................................................... 1

1.3 Air Quality Objectives ............................................................................... 1

1.4 Summary of Previous Review and Assessments...................................... 3

2 New Monitoring Data ....................................................................................... 6

2.1 Summary of Monitoring Undertaken ......................................................... 6

2.2 Comparison of Monitoring Results with Air Quality Objectives ............... 25

3 New Local Developments .............................................................................. 58

3.1 Road Traffic Sources .............................................................................. 58

3.2 Other Transport Sources ........................................................................ 59

3.3 Industrial Sources ................................................................................... 59

3.4 Commercial and Domestic Sources ........................................................ 59

3.5 New Developments with Fugitive or Uncontrolled Sources .................... 60

4 Planning Applications ................................................................................... 61

5 Air Quality Planning Policies ........................................................................ 62

6 Implementation of Action Plans .................................................................... 63

7 Conclusions and Proposed Actions ............................................................. 64

7.1 Conclusions from New Monitoring Data .................................................. 64

7.2 Conclusions relating to New Local Developments .................................. 64

7.3 Other Conclusions .................................................................................. 64

7.4 Proposed Actions .................................................................................... 65

8 References ...................................................................................................... 66

List of Tables

Table 1.1 – Air Quality Objectives included in Regulations for the purpose of LAQM in Wales

Table 1.2 - Summary of Previous Report and Assessment Stages

Table 2.1 – Details of Automatic Monitoring Sites

Table 2.2 – Details of Non- Automatic Monitoring Sites


LAQM Progress Report 2017 ii

Table 2.3 – Results of Automatic Monitoring for NO2: Comparison with Annual Mean Objective

Table 2.4 – Results of Automatic Monitoring for NO2: Comparison with 1-hour Mean Objective

Table 2.5 – Results of NO2 Diffusion Tubes 2016 outside of AQMAs

Table 2.6 – Results of NO2 Diffusion Tubes 2016 associated with AQMAs

Table 2.7 – Full Results of NO2 Diffusion Tubes 2016

Table 2.8 – Results of NO2 Diffusion Tubes (2012 to 2016)

Table 2.9 – Results of Automatic Monitoring for PM10: Comparison with Annual Mean Objective

Table 2.8 – Results of Automatic Monitoring for PM10: Comparison with 24-hour Mean Objective

List of Figures

Figure 1.1 – Map(s) of AQMA Boundaries

Figure 2.1 – Map(s) of Automatic Monitoring Sites

Figure 2.2 – Map of Non-Automatic Monitoring Sites

Figure 2.3 – M4 Unit Distance Analysis

Figure 2.4 – Automatic Monitoring Analysis

Figure 2.5 – M4 Traffic Statistics Analysis

Figure 2.6 – M4 Diffusion Tube Analysis

Figure 2.7 – Diffusion Tube Trend

Figure 2.8 – Diffusion Tube Trend Percentage Change

Figure 2.9 – Automatic Trend Analysis

Appendices Appendix A: QA/QC Data Appendix B: Monthly Diffusion Tube Results 2016 Appendix C: Detailed Maps of AQMAs within the Newport City District


LAQM Progress Report 2017 1

1 Introduction

1.1 Description of Local Authority Area

Newport is the third largest city in Wales situated on the South Wales coast. The city

population of Newport is just over 140,000 (based on the national census) covering

approximately 84 square miles. A large proportion of the authority is urban which

includes a large docks area, several large industrial estates and the M4 motorway.

There has been a steady decline in heavy industry over the past three decades

resulting in the gradual replacement of industrial installations with residential

dwellings.

Recently the city centre has undergone extensive regeneration including a new

shopping facility, parking and public transport infrastructure. The M4 motorway

transects several of Newport’s residential suburbs and there are proposals to

redirected M4 around the south of the city to ease congestion.

1.2 Purpose of Progress Report

This report fulfils the requirements of the Local Air Quality Management (LAQM)

process as set out in Part IV of the Environment Act (1995), the Air Quality Strategy

for England, Scotland, Wales and Northern Ireland 2007 and the relevant Policy and

Technical Guidance documents. The LAQM process places an obligation on all local

authorities to regularly review and assess air quality in their areas, and to determine

whether or not the air quality objectives are likely to be achieved. Where

exceedences are considered likely, the local authority must then declare an Air

Quality Management Area (AQMA) and prepare an Air Quality Action Plan (AQAP)

setting out the measures it intends to put in place in pursuit of the objectives.

1.3 Air Quality Objectives

The air quality objectives applicable to LAQM in Wales are set out in the Air Quality

(Wales) Regulations 2000, No. 1940 (Wales 138), Air Quality (Amendment) (Wales)

Regulations 2002, No 3182 (Wales 298), and are shown in Table 1.1. This table

shows the objectives in units of micrograms per cubic metre µg/m3 (milligrams per



cubic metre, mg/m3 for carbon monoxide) with the number of exceedences in each

year that are permitted (where applicable).

Table 1.1 – Air Quality Objectives included in Regulations for the purpose of

LAQM in Wales

Pollutant Air Quality Objective Date to be

achieved by Concentration Measured as

Benzene 16.25 µg/m3 Running annual

mean 31.12.2003

5.00 µg/m3 Annual mean 31.12.2011

1,3-butadiene 2.25 µg/m3 Running annual

mean 31.12.2003

Carbon monoxide 10 mg/m3 Running 8-hour

mean 31.12.2003

Lead 0.50 µg/m3 Annual mean 31.12.2004

0.25 µg/m3 Annual mean 31.12.2008

Nitrogen dioxide

200 µg/m3 not to be exceeded more than 18 times a

year

1-hour mean 31.12.2005

40 µg/m3 Annual mean 31.12.2005

Particulate matter (PM10)

(gravimetric)

50 µg/m3, not to be exceeded more than 35 times a

year

24-hour mean 31.12.2004

40 µg/m3 Annual mean 31.12.2004

Sulphur dioxide

350 µg/m3, not to be exceeded more

than 24 times a year

1-hour mean 31.12.2004

125 µg/m3, not to be exceeded more than 3 times a year

24-hour mean 31.12.2004

266 µg/m3, not to be exceeded more

than 35 times a year

15-minute mean 31.12.2005



1.4 Summary of Previous Review and Assessments

The Environment Act requires local authorities to review and assess air quality, table 1.2 (below) shows air quality reports and assessments at key stages. Table 1.2 Summary of Previous Report and Assessment Stages

Report Title Date Outcome Summary

First Round – Stage 1 Review & Assessment of Air Quality

December 1998


October 1999


June 2001

Air Quality Updating and Screening Assessment

May 2003 Seven areas adjacent to the M4 identified and declared as AQMA’s, through modelling and monitoring


July 2004

Detailed Assessment 2004 Fours AQMA’s were revoked and the remaining 3 amended.

Air Quality Progress Report Sept 2005 Exceedances for NO2. All other pollutants met objective levels. Four new AQMA proposed.


2006 No new significant sources identified. Large industrial operations considered in the past are no longer considered as having a significant impact on air quality at receptor locations.

Air Quality Progress Report 2007 Nitrogen dioxide exceedances in areas outside existing AQMA’s. Two new AQMA’s proposed.

Air Quality Action Plan 2008 For seven existing AQMA’s


2009 Identified exceedances outside AQMA’s and one AQMA falling below objective level. Detailed Assessment required.

Air Quality Action Plan Progress Report

2009 Update on the progress of action plan measure implementation.

Air Quality Detailed Assessment

2009 Created two new AQMA’s and retained existing declared AQMA’s.

Air Quality Progress Report 2010 No detailed assessment required




Report Title Date Outcome Summary

Air Quality updating and Screening Assessment

2012 Three areas identified outside AQMA, further monitoring recommended. No detailed assessment required.


Air Quality Progress Report 2014 Identified exceedances outside current AQMAs. Glasllwch Crescent required a detailed assessment


2015 Two further detailed assessments recommended for Chepstow Road / Clarence Place and Caerleon. Independent Assessments completed for Chepstow Road, Caerleon and Glasllwch Crescent – Detailed Assessment by NCC will follow.

Air Quality Progress Report 2016 The 2015 monitoring results indicated exceedances outside of the current AQMA boundaries for Caerleon, Chepstow Road and Glasllwch Crescent. Similar to what was previously reported in 2015.

Detailed Assessment 2016 Detailed Assessment for Caerleon undertaken and accepted by Welsh Government. NB. Since the detailed assessment was undertaken, changes in the Guidance no longer require a detailed assessment to be completed prior to declaring / altering AQMAs.

The last three years of documents are available via the council’s website

(www.newport.gov.uk/airquality), Reports older than three years are available upon

request please contact [email protected] for further details.

http://www.newport.gov.uk/airquality

mailto:[email protected]



Figure 1.1 – Map(s) of AQMA Boundaries

1 – Glasllwch, 2 – Malpas Road (Graig Park Ave), 3 – Shaftsbury, 4 – Malpas Road, 5 – Caerleon Road, 6 – St

Julian’s, 7 – High Street (Caerleon), 8 – Royal Oak Hill, 9 – Chepstow Road. More detailed maps of each AQMA

can be found in Appendix C



2 New Monitoring Data

2.1 Summary of Monitoring Undertaken

2.1.1 Automatic Monitoring Sites

Within the Newport City Area there are two Automatic Monitoring Stations. St Julian’s

is owned and operated by Newport City Council. The second is located next to the

M4 owned by Welsh Government and currently operated by Newport City Council.

Figure 2.1 – Map(s) of Automatic Monitoring Sites

A - St Julian’s Automatic Monitoring Site

Newport City Council Automatic Monitoring Station is located at St Julian’s

Comprehensive School, Heather Road, Newport NP19 7XU. The station monitors for:

Nitrogen Dioxide (NO2)

Particulates (PM10, PM2.5)

Benzene

Polly aromatic Hydrocarbons (PAH)

The monitoring station is located within the grounds of the school and is considered

an urban background monitoring location. It is approximately 55 metres south from

the hard shoulder of the M4, slightly elevated above the carriageway and a densely

vegetated area that immediately borders the carriageway.



The unit is equipped to monitor for NO2 and PM10, which commenced in February

2003. In 2008 the site became part of the Automatic Urban and Rural Network

(AURN) of monitoring stations and included an additional PM2.5 monitor. The site is

calibrated by Newport City Council staff and maintenance is carried out by an

independent contractor.

Data is automatically uploaded to the Welsh Air Quality forum website - Air Quality

Wales (www.welshairquality.co.uk). Here data ratification is carried out by an

independent consultant for all automatic monitoring stations across the Wales.

B - M4 Automatic Monitoring Unit Owned by Welsh Government, the unit is located on the northern embankment of the

M4 near junction 25.The unit is situated on land that is owned by the Highways

Agency between the M4 and Badminton Road/Old Barn. The station monitors for:

Nitrogen Dioxide (NO2)

Ozone

Located within the boundary of the M4 corridor, it is considered to be a Roadside

location. Initially it was positioned to determine if the reduced speed limit on the

section of the M4 had an impact upon local air quality. It is approximately 5.5m from

the M4 hard shoulder at an elevation of 7.5m. The site became operational in June

2012, monitoring for Nitrogen Dioxide and Ozone. Newport City Council staff

undertake limited maintenance on behalf of the Welsh Government, the remainder is

carried out by an independent contractor.

Data is automatically uploaded to the Welsh Air Quality forum website - Air Quality

Wales (www.welshairquality.co.uk). Here data ratification is carried out by an

independent consultant for all automatic monitoring stations across Wales.

http://www.welshairquality.co.uk/




Table 2.1 – Details of Automatic Monitoring Sites

Site ID

Site Name

Site Type X OS Grid Reference

Y OS Grid Reference

Inlet Height

(m)

Pollutants Monitored

In AQMA?

Monitoring Technique

Relevant Exposure?

(Y/N with distance (m) from

monitoring site to

relevant exposure)

Distance to Kerb of Nearest

Road (m) (N/A if not applicable)

Does this Location

Represent Worst-Case

Exposure?

A

St

Julian’s

School

Urban

Background 332418 189603 2

NO, NO2,

PM2.5,

PM10,

Benzene,

PAH’s

N

TEOM/FDMS

Automatic

Analyser

Y(2m

School)

55m South

of M4 N

B M4 Roadside 332685 189613 2 Ozone,

NO, NO2 N

Automatic

Analyser N(40m)

5m North

of M4

(Within

Motorway

Verge)

N



2.1.2 Non-Automatic Monitoring Sites

Environmental Health has an extensive diffusion tube monitoring network. In 2015 it

comprised of 55 diffusion tubes, this has now increased to 80 tubes as shown in

Figure 2.2 and Table 2.2. The location of each tube is selected following the

assessment of areas likely to suffer from poor air quality due to traffic volume,

congestion and/or street layout and the presence of relevant receptors.

Diffusion tubes are located within a monitoring position for at least twelve months and

if no exceedances or significant elevated level of nitrogen dioxide is identified the

tube is relocated to another potential location.

Preferably tubes are located on the façade of residential buildings, or as close as

possible, to provide an accurate measurement of relevant exposure. Where it has not

been possible to locate a tube on the façade of residential property the next most

suitable location is chosen (i.e. lamppost) to provide a roadside or kerbside

measurement.

All diffusion tubes are currently monitoring road vehicle sources with the exception of

the co-location tubes at the automatic monitoring stations. The diffusion tubes

located at the St Julian’s monitoring station are used for bias adjustment purposes.

The tube results have been distance corrected (where appropriate) and adjusted for

bias using has been carried out using the approach set out in LAQM.TG16. Details

of the bias calculation are detailed in Appendix A.



Figure 2.2 – Map of Non-Automatic Monitoring Sites

A – 2016 Diffusion tube locations

B – 2015/16 Diffusion tube location comparison – Red: New tube locations (2016) in addition to B: Black original locations (2015)



Table 2.2 – Details of Non- Automatic Monitoring Sites (-- tubes that have been relocated see table 2.5 for justification)

Site ID Site Name Site Type X OS Grid Reference

Y OS Grid Reference

Site Height

(m)


In AQMA?

Is Monitoring Co-located

with a Continuous

Analyser (Y/N)

Relevant Exposure?


monitoring site to

relevant exposure)



Does this Location


Exposure?

NCC1 Chepstow

Road Kerbside 331995 188415 2.16 NO2 Y N Y (5.78) 0.68 Y

NCC2C 69 Glasllwch

Crescent Façade 328333 187869 1.73 NO2 N N Y (0) 6 Y

NCC3A 13 Mill Street

(Caerleon) Façade 334092 190822 2.59 NO2 N N Y (0) 1.7 Y

NCC4A 71 Glasllwch

Crescent Façade 328327 187880 1.83 NO2 N N Y (0) 11 Y

NCC4B 67 Glasllwch

Crescent Roadside 328363 187895 2.04 NO2 N N Y() 44.2 Y

NCC5 Corporation

Road Roadside 332327 187773 2.69 NO2 Y N Y (3.4) 0.68 Y

NCC6B 153 Malpas

Road Roadside 330565 189618 2.16 NO2 N N Y (0) 4.08 Y

NCC7A Glasllwch

Lane Kerbside 328366 187323 2.74 NO2 N N Y (2) 9 Y




Y OS Grid Reference

Site Height

(m)


In AQMA?


with a Continuous

Analyser (Y/N)

Relevant Exposure?


monitoring site to

relevant exposure)



Does this Location


Exposure?

NCC7B 64 Glasllwch

Crescent Façade 328421 187778 1.1 NO2 N N Y(0) 42.2 Y

NCC8 High Street

Caerleon Roadside 334105 190478 2.84 NO2 N N Y (0.34) 1.7 Y

NCC9D

182

Corporation

Road

Roadside 332062 187958 2.84 NO2 N N Y (4.42) 0.34 Y

NCC10C 97 Chepstow

Road Roadside 332093 188401 2.03 NO2 N N Y (3.0) 0.34 Y

NCC10D 234 Stow Hill Façade 330162 187628 2.1 NO2 N N Y(0) 2.2 Y

NCC11A

*169

Caerleon

Road

(Maceys)

Roadside 332018 188987 3 NO2 N N Y (0.34) 3.06 Y

NCC12A 73 George

Street Façade 331428 187498 2.74 NO2 N N Y (0) 2.7 Y




Y OS Grid Reference

Site Height

(m)


In AQMA?


with a Continuous

Analyser (Y/N)

Relevant Exposure?


monitoring site to

relevant exposure)



Does this Location


Exposure?

NCC13B 76 Capel

Crescent Roadside 330932 187046 2.4 NO2 N N Y(1.2) 3 Y

NCC14A 48 Malpas

Road Façade 330834 189310 2.44 NO2 N N Y (0) 4.08 Y

NCC15 Glasllwch

Crescent Roadside 328443 187809 2.13 NO2 N N Y (4.8) 0 Y

NCC16A 40 Denbigh

Road Roadside 332320 189703 1.83 NO2 N N Y (2) 2 Y

NCC17A 179 Malpas

Road Façade 330507 189664 2.16 NO2 N N Y (0) 20 Y

NCC18C Bassaleg

Road (158/3) Roadside 328586 187008 1.9 NO2 N N Y (0) 8 Y

NCC19B 177 Malpas

Road Roadside 330510 189680 2.16 NO2 N N Y (0) 8 Y

NCC19C

94

Mendalgief

Road

Façade 331083 186688 1.3 NO2 N N Y(0) 4.7 Y




Y OS Grid Reference

Site Height

(m)


In AQMA?


with a Continuous

Analyser (Y/N)

Relevant Exposure?


monitoring site to

relevant exposure)



Does this Location


Exposure?

NCC20C

222

Corporation

Road

Roadside 332182 187872 2.69 NO2 N N Y (2.4) 0.8 Y

NCC21D

M4

Groundhog 1

(Old Barn)

Roadside 332690 189615 2.54 NO2 N Y N/A N/A Y

NCC22B 88 Chepstow

Road Roadside 332091 188382 2.69 NO2 N N Y (0) 2.04 Y

NCC23E

M4

Groundhog 2

(Old Barn)

Roadside 332690 189615 2.54 NO2 N Y N/A N/A Y

NCC24B

21 Caerleon

Road (Swift

LGV)

Roadside 331563 188548 2.46 NO2 N N Y (2.04) 2.04 Y

NCC24C 19 Caerleon

Road Façade 331562 188549 1.7 NO2 N N Y(0) 1.7 Y




Y OS Grid Reference

Site Height

(m)


In AQMA?


with a Continuous

Analyser (Y/N)

Relevant Exposure?


monitoring site to

relevant exposure)



Does this Location


Exposure?

NCC25B

Denbigh

Road ((No

41) M4 slip

road)

Roadside 332307 189712 1.27 NO2 N N Y (3) 9 Y

NCC25C

19 High

Street

Caerleon

Façade 334182 190422 1.7 NO2 N N Y(0) 0.4 Y

NCC26B

15 High

Street,

Caerleon

Roadside 334131 190461 2.59 NO2 N N Y (0.34) 2.38 Y

NCC27B

18 High

Street,

Caerleon

Roadside 334143 190454 2.59 NO2 N N Y (0.34) 1.36 Y

NCC28B 155 Caerleon

Road Roadside 332047 189070 2.9 NO2 N N Y (1.02) 3.06 Y

NCC29B 79 Chepstow

Road (lib) Roadside 332015 188415 2.84 NO2 N N Y (0) 3.4 Y




Y OS Grid Reference

Site Height

(m)


In AQMA?


with a Continuous

Analyser (Y/N)

Relevant Exposure?


monitoring site to

relevant exposure)



Does this Location


Exposure?

NCC29C 5 Cefn Road Façade 327600 188468 2.1 NO2 N N Y(0) 0.8 Y

NCC30 33 Wharf

Road Roadside 332190 188055 2 NO2 N N Y(0) 3 Y

NCC31 Buckland

Cottage Façade 334944 189240 1.83 NO2 N N Y (0) 9.3 Y

NCC32D 372 Malpas


NCC32E 376 Malpas


NCC33A

162

Bassaleg

Road

Roadside 328539 186986 2.13 NO2 N N Y (0) 12.2 Y

NCC33B 69 Cefn


NCC34A The Priory,

Caerleon Façade 334010 190532 2.59 NO2 N N Y (0) 1.7 Y




Y OS Grid Reference

Site Height

(m)


In AQMA?


with a Continuous

Analyser (Y/N)

Relevant Exposure?


monitoring site to

relevant exposure)



Does this Location


Exposure?

NCC35A

6 Castle

Street,

Caerleon

Roadside 334232 190463 2.54 NO2 N N Y (1.7) 1.36 Y

NCC36A

1 Castle

Street,

Caerleon

Roadside 334260 190479 2.79 NO2 N N Y (2.7) 1.02 Y

NCC37 St. Julians

School 1

Urban

Background 332499 189569 2.59 NO2 N Y Y (0) 55 Y

NCC38 St. Julians

School 2

Urban


NCC39 St. Julians

School 3

Urban


NCC40

158

Bassaleg

Road

Roadside 328590 186992 3.05 NO2 N N Y (0) 9.9 Y

NCC40A 14 Risca





Y OS Grid Reference

Site Height

(m)


In AQMA?


with a Continuous

Analyser (Y/N)

Relevant Exposure?


monitoring site to

relevant exposure)



Does this Location


Exposure?

NCC41B Bassaleg

Road (162/3) Façade 328537 187005 2.69 NO2 N N Y (0) 11.5 Y

NCC42

Mendalgief

(Cardiff)

Road

Roadside 330915 187046 2.79 NO2 N N Y (0.8) 6.4 Y

NCC43A

7 Castle

Street

(Caerleon)

Façade 334212 190446 2.59 NO2 N N Y (0) 1.02 Y

NCC44B

175/177

Corporation

Road

Façade 332048 187989 2.2 NO2 N N Y(0) 4.0 Y

NCC45A 515 Malpas


NCC45B

201

Corporation

Road

Façade 332142 187921 2.45 NO2 N N Y(0) 2.35 Y




Y OS Grid Reference

Site Height

(m)


In AQMA?


with a Continuous

Analyser (Y/N)

Relevant Exposure?


monitoring site to

relevant exposure)



Does this Location


Exposure?

NCC46B

*148

Chepstow

Road

Roadside 332290 188339 2.84 NO2 N N N 2.72 Y

NCC47A

9 Castle

Street

(Caerleon)

Façade 334199 190431 2.79 NO2 N N Y (0) 1.36 Y

NCC48C Cardiff Road Roadside 331100 187224 2.87 NO2 N N Y (3.0) 6.46 Y

NCC48D 85 Caerphilly


NCC49B 40 Chepstow


NCC50 9 Caerleon

Road (tattoo) Roadside 331531 188536 2.26 NO2 N N Y (1.7) 2.38 Y

NCC51 81 George

Street Façade 333751 190785 2.74 NO2 N N Y (0) 0 Y




Y OS Grid Reference

Site Height

(m)


In AQMA?


with a Continuous

Analyser (Y/N)

Relevant Exposure?


monitoring site to

relevant exposure)



Does this Location


Exposure?

NCC52

9 Station

Road

(Caerleon)

Roadside 333880 190970 2.54 NO2 N N Y (2.7) 1.7 Y

NCC53 5 High Street

(Caerleon) Façade 333598 190556 2.26 NO2 N N Y (0) 4.08 Y

NCC54

96/98 Mill

Street

(Caerleon)

Roadside 334279 190593 2.7 NO2 N N Y (0) 1.36 Y

NCC55

116

Alexandra

Road

Kerbside 331536 186222 2.79 NO2 N N Y (2.0) 0.34 Y

NCC56 Forge Close Façade 328015 186383 1.8 NO2 N N Y (0) 10.0 Y

NCC57 30 Clytha

Park Square Façade 330581 188070 2.7 NO2 N N Y(0) 2.1 Y

NCC58 1 Caerau





Y OS Grid Reference

Site Height

(m)


In AQMA?


with a Continuous

Analyser (Y/N)

Relevant Exposure?


monitoring site to

relevant exposure)



Does this Location


Exposure?

NCC59

69

Commercial

Street

Roadside 331552 187056 2.28 NO2 N N Y(1.3) 1.3 Y

NCC60 1 Victoria

Street Roadside 331010 187733 2.8 NO2 N N Y(1.3) 2.7 Y

NCC61 119 Stow Hill Façade 330793 187566 2.29 NO2 N N Y(0) 2.1 Y

NCC62 421 Malpas

Road Façade 330456 190646 1.09 NO2 Y N Y(0) 4.7 Y

NCC63 88 Malpas

Road Façade 330743 189444 2.0 NO2 N N Y(0) 5 Y

NCC64 4-6 Malpas

Road Façade 330891 189199 2.64 NO2 N N Y(0) 3 Y

NCC65

153/155

Chepstow

Road

Façade 330456 190646 2.39 NO2 Y N Y(0) 2.4 Y




Y OS Grid Reference

Site Height

(m)


In AQMA?


with a Continuous

Analyser (Y/N)

Relevant Exposure?


monitoring site to

relevant exposure)



Does this Location


Exposure?

NCC66

109

Chepstow

Road

Façade 332204 188374 2.56 NO2 Y N Y 2.4 Y

NCC67

1-17

Corporation

Road

Façade 331529 188476 2.38 NO2 Y N Y(3.7) 3.7 Y

NCC68

Art College,

Clarence

Place

Roadside 331386 188461 2.52 NO2 Y N Y(2.3) 2.3 Y

NCC69 190 Caerleon


NCC70 6 Burton

Road Façade 332774 189609 2.15 NO2 N N Y(0) NA Y

NCC71 318 Caerleon


NCC72 340 Caerleon





Y OS Grid Reference

Site Height

(m)


In AQMA?


with a Continuous

Analyser (Y/N)

Relevant Exposure?


monitoring site to

relevant exposure)



Does this Location


Exposure?

NCC73

Southgate,

Whitehart

Lane

Roadside 334123 190374 2.37 NO2 N N Y(2.6) 2.6 Y

NCC74

Coach

House,

Caerleon

Façade 334155 190408 1.8 NO2 N N Y(0) 1.9 Y

NCC75 19 Goldcroft

Common Façade 33375 190785 2.2 NO2 N N Y(0) 0.4 Y

NCC76

10 Cross

Street,

Caerleon

Roadside 334085 190587 2.1 NO2 N N Y(0.1) 1.1 Y

NCC77 Toll House,

Caerleon Roadside 334195 190186 1.6 NO2 N N Y(0) 1.9 Y

NCC78

Gwent

Cottage,

Caerleon

Façade 334208 190186 1.75 NO2 N N Y(0) 0.8 Y




Y OS Grid Reference

Site Height

(m)


In AQMA?


with a Continuous

Analyser (Y/N)

Relevant Exposure?


monitoring site to

relevant exposure)



Does this Location


Exposure?

NCC79 276 Christ

Church Road Façade 334221 188885 1.95 NO2 N N Y(0) NA Y

NCC80

37 Old

Langstone

Court Road

Façade 336869 189623 1.6 NO2 N N Y(0) 13.0 Y



2.2 Comparison of Monitoring Results with Air Quality Objectives

2.2.1 Nitrogen Dioxide (NO2)

Automatic Monitoring Data

St Julian’s

Data Capture from the St Julian’s monitoring station for the 2016 monitoring period

has been consistently high (94%). The Nitrogen Dioxide results are broadly

consistent with previous year’s results with an annual mean of 22.0 µg/m3 (2016 21.0

µg/m3)

M4 (Junction 24)

The M4 unit became operational in 2013. The 2016 data capture was 97% with the

average nitrogen dioxide reading of 46.0 µg/m3 which is a significant drop from the

previous year of 54.0 µg/m3. This may be partly due to the intermittent part and full

closure of this stretch of the M4 from the improvement works at the Brynglas

Tunnels. Further analysis of the M4 is provided in Figure 2.6.

In the 2016 progress report assessment of the neighbouring residential properties

was undertaken to determine if relevant exposure was possible given the frequent

elevated results from the automatic station.

Figure 2.3 - M4 Unit Distance Correction Analysis

Burton Road Diffusion Tube



To determine if an exceedance was present additional monitoring point was installed

on the façade of a residential property at Burton Road. The results of which indicate

26.1 µg/m3, which is below the nitrogen dioxide objective. However due to the

recorded dramatic fall in nitrogen dioxide readings from the automatic station, the

diffusion tube results may not represent the worst case scenario. Further monitoring

is recommended.



Table 2.3 – Results of Automatic Monitoring for NO2: Comparison with Annual Mean Objective

Site ID Site Type Within

AQMA?

Valid Data Capture for Monitoring Period % a

Valid Data Capture 2016

% b

Annual Mean Concentration (µg/m3)

2012* c 2013* c 2014* c 2015 c 2016

St Julian’s Urban

Background N 100 94 22.0 23.1 22.4 21.0 22.0

Junction 25A M4

Roadside N 100 97 - 59.0 56.0 54.0 46.0

In bold, exceedence of the NO2 annual mean AQS objective of 40µg/m3



Figure 2.4 – Trends in Annual Mean NO2 Concentrations Measured at Automatic Monitoring Sites (Trend line provided for the St Julian’s Unit)

The St Julian’s monitoring station indicates a general downward trend in Nitrogen Dioxide which was being mirrored in the M4 unit’s

results. However the 2016 results indicate a slight increase in Nitrogen Dioxide at the St Julian’s Unit (background) with a dramatic

decline in the M4 unit. Since July 2016 there have been regular night closures of the Brynglas Tunnels which may account for this

dramatic change in the M4 unit’s results. However from the DfT statistics (Figure 2.5) there appears to have been little change in the

overall volume. The construction works are still on going, and are due to be completed near the end of 2017. Only when the works

have been completed will it be possible to determine if these closures are the reason for the dramatic decline.

It should also be noted the volume of road traffic is likely to increase due to the removal of the M4 Bridge Toll that is proposed to come into effect on 1st January 2019.



Figure 2.5 – M4 motorway road statistics obtained from the Department for Transport: http://www.dft.gov.uk/traffic-counts/cp.php?la=Newport

http://www.dft.gov.uk/traffic-counts/cp.php?la=Newport

http://www.dft.gov.uk/traffic-counts/cp.php?la=Newport



Table 2.4 – Results of Automatic Monitoring for NO2: Comparison with 1-hour Mean Objective


AQMA?


Valid Data Capture 2016

% b

Number of Hourly Means > 200µg/m3

2012* c 2013* c 2014* c 2015* c 2016 c

St Julian’s Urban

Background N 100 94 0 0 1 0 0

Junction 25A M4

Roadside N 100 97 - 12 0 2 5

In bold, exceedence of the NO2 hourly mean AQS objective (200µg/m3 – not to be exceeded more than 18 times per year)



Diffusion Tube Monitoring Data

Newport City Council has a total of 80 diffusion tubes throughout the district during

the 2016 monitoring period. This is an increase of 25 diffusion tubes from the 2015

monitoring period.

Along with the additional 25 diffusion tubes, 12 tubes were relocated. Full details are

provided in Tables 2.5 and 2.6.

A summary of diffusion tube results that are exceeding either within or outside of

current AQMAs is provided below accompanied by proposed actions.



Table 2.5 - EXCEEDING DIFFUSION TUBE RESULTS OUTSIDE OF AQMAs

Site ID Tube IDs

Nitrogen Dioxide µg/m3

Comments AQMA Alteration

Required?

20

14

20

15

20

16

Glasllwch Crescent

NCC2 37.0 40.3 38.2 NCC4B Glasllwch Crescent was installed in 2016 on the opposite side of the M4 Junction. Both near exceedances appear to be attributed to M4 West Bound Traffic. The tube

results have fluctuated around the 40ug/m3 objective. It is advisable that a new AQMA is

declared for this location.

New AQMA Recommended

(High Cross) NCC4B - - 37.6

Caerphilly Road

NC49C - - 32.8*

Monitoring along Caerphilly Road began in 2016. The results show a clear exceedance. In particular NC48D is a series of terrace houses very close to the kerb. The single

carriageway road is on a steep incline with a high proportion of HGVs, local and through traffic. NCC49C Caerphilly Road is located near the junction with Forge Road on the

A468. At this point the road is relatively flat and the properties slightly more set back from the road compared to NCC48D.

Given the clear exceedance at NCC48D a new AQMA shall be declared. Additional monitoring points shall be installed. If additional exceedances are encountered, the

boundary of the AQMA shall be extended to include these areas.


(Caerphilly Road)

NCC48D - - 50.8

Cefn Road

NCC29C - - 39.8 Monitoring along Cefn Road began in 2016. Cefn Road is a B Road (B4591) that leads directly into High Cross Road that adjoins the M4 at Junction 27 of the M4. Cefn Road

slopes down to the northwest and is flanked by an embankment / wall of the 14 Locks to the north and to the south by a row of terrace houses that abut the kerb. The local

environment and the high traffic flow forms a tight street canyon with little direct sunlight. An AQMA should be declared and additional monitoring undertaken.


(Cefn Road)

NCC33B - - 39.0



Table 2.5 (cont.) - EXCEEDING DIFFUSION TUBE RESULTS OUTSIDE OF AQMAs

Site ID Tube IDs


Comments AQMA Alteration

Required?

20

14

20

15

20

16

M4

NCC21 58.3 61.8 56.6 In the 2016 Progress Report it was highlighted that the diffusion tubes on the M4 unit exceeds the objective. Residential properties in the vicinity appeared to be within a similar

distance to the M4 unit. Therefore an additional monitoring point at Burton Road on the rear façade of the property was installed. The results indicate a relatively low level of air

pollution, similar to background. However, given the recent variations recorded variations in air pollution from the M4, further monitoring is recommended to determine the long term

trend.

No – Further monitoring Recommended.

NCC23 57.6 58.2 55.5

NCC90 - - 26.1

George Street

NCC51 - 39.1 40.1 George Street is a busy dual carriageway just south of the centre of Newport. It is flanked on both sides by rows of terrace houses. At either end of the road are sets of traffic lights that cause traffic to idle in front of the residential properties. The tube results indicate an exceedance, an AQMA should be declared and additional monitoring points deployed.


(George Street) NCC12A 33.6 37.0 37.2



Table 2.6 - SUMMARY OF DIFFUSION TUBE ASSOCIATED WITH AQMAS

AQMA

TUBE ID

(Y: Inside AQMA)


Comment AQMA

Alteration Required?

20

14

20

15

20

16

1 Glasllwch

(M4)

NCC18C (Y)

38.7* 39.6* 34.5*

NCC18C is located on the property to the east of the M4, NCC41B is located on the façade of the property to the west. Monitoring indicates the results are just below the annual objective at NCC18C but well below at NCC41B. The significant drop in levels at NCC18C in 2016 is consistent with the decrease measured in the M4 automatic unit

which has been attributed to the traffic management surrounding works on Brynglas Tunnels. Given the variations in the M4 traffic and the impacts on localised pollution

levels it is considered appropriate to maintain the AQMA as it is and monitoring continued. See Figure 2.6 for more details.

No.

NCC41B (Y)

35.6 30.9 32.7

2 Malpas Road

(Graig Park) (M4)

NCC32E (Y)

35.9 (D)

35.8 (D)

34.4 (E)

During the 2016 monitoring period it was necessary to move the diffusion tube to the

neighbouring property which is in an identical situation. The results indicate a consistent level to previous years monitoring below the objective. Additional monitoring

point NCC62 was installed in 2016 to determine if an exceedance is present on the opposite side of the road. The results indicate a near background level. Given the

consistent trend below the objective, revocation of this AQMA may be considered an option.

Possibly. No exceedance or likely exceedance

has been encountered for

some time. AQMA to be considered for revocation.

NCC62 (Y)

- - 24.4

3 Shaftsbury

(M4)

NCC6B (Y)

37.5* 41.1* 38.0* NCC17A is located on the façade of property to the north of the M4, NCC6B is located

near a residential property to the south of the M4. Both tubes have shown improvement, the Brynglas Tunnel works and other road works may have impacted the

volume / dispersion of pollutants – see Figure 2.6 for more details.

No NCC17A

(Y) 32.4 31.3 27.7



Table 2.6 (cont.) - SUMMARY OF DIFFUSION TUBE ASSOCIATED WITH AQMAS

AQMA

TUBE ID

(Y: Inside AQMA)


Comment AQMA

Alteration Required?

4 Malpas Road

NCC14A (Y)

41.6 40.5 43.8

Additional Monitoring points have been added which indicate an exceedance outside of the current boundary (NCC64) to the south. The AQMA boundary should be reviewed

and expanded to encapsulate the new exceedance recorded.

Yes – Exceedances

outside the current AQMA – the boundary to be reviewed and

extended.

NCC64 (N)

- - 46.1

NCC63 (N)

- - 34.2

5 Caerleon

Road

NCC28B (Y)

37.9* 38.9* 41.1*

Two additional monitoring points (NCC11A and NCC69) have been installed either side of the original diffusion tube NCC28B. Neither of the additional monitoring points has

shown an exceedance. Additional monitoring is recommended. No NCC11A

(N) - - 35.5*

NCC69 (N)

- - 29.4

6 St Julian’s

(M4)

NCC16A (Y)

36.7* 36.0* 33.8* Monitoring results are consistently below the objective. However given the variations in

the M4 traffic flows and recent road works, a downward trend is not conclusive. See Figure 2.6 for more details.

No

7 High Street Caerleon

NCC8 (N)

42.7* 43.1* 42.1*

As described in the Caerleon Detailed Assessment the AQMA is proposed to be expanded to encapsulate all of the exceedances. It is envisaged the revised AQMA boundary will come into effect in early 2018.

Yes – AQMA boundary change to come into effect

in 2018.

NCC26B (N)

54.3* 56.3* 54.1*

NCC25C (N)

- - 44.0

NCC27B (N)

47.5* 48.0* 49.3*

NCC47 (N)

40.4 38.5 37.0



Table 2.6 (cont.) - SUMMARY OF DIFFUSION TUBE ASSOCIATED WITH AQMAS

AQMA

TUBE ID

(Y: Inside AQMA)

Nitrogen Dioxide µg/m3 Comment

AQMA Alteration Required?

2014 2015 2016

8 Royal Oak Hill (M4)

NCC31 (Y)

43.0 45.6 44.3

Unlike the other M4 monitoring locations NCC31 has not been affected by the Brynglas Tunnel works traffic management. This may be due to Royal Oak Hill

being far from the closed section. Please see Figure 2.6 for more details.

No.

9 Chepstow

Road

NCC1 32.4* 34.4* 32.6*

A number of diffusion tubes within the Clarence Place/ Chepstow Road AQMA have been repositioned or added. As shown this has resulted in exceedances

which have not previously been recorded. This information will be used to guide a revised boundary of the AQMA.

Yes Revised AQMA boundary will be proposed and implemented.

NCC9D - - 31.6

NCC10C 25.7* 25.6* -

NCC20C - - 37.8

NCC22B 39.4* 41.2* 40.3

NCC24 40.6 38.4 29.3

NCC29B 26.0* 30.1* -

NCC45B - - 33.3

NCC46B 46.5* 48.9* 44.4

NCC49B 26.5 24.1* -

NCC50 36.7* 39.1* 42.2

NCC59 - - 25.6

NCC65 - - 47.5

NCC66 - - 37.3

NCC68 - - 40.1

*Distance corrected



Figure 2.6 - M4 Summary 2016 The diffusion tubes and monitoring stations along the M4 indicate considerable variability along the route through Newport. Environmental factors such as topography, wind direction, width of carriageway etc. all play a part in the dispersion of pollution from the M4. As shown, some tubes are well below the objective whilst others exceed. The AQMAs may not reflect the tube results based on 2016 alone. However, there have been and will continue to be wide variations in the congestion profiles. These will continue with the ongoing Brynglas Tunnel works, the Junction 28 improvements. Furthermore, the proposed removal of the M4 Bridge Toll is likely to increase traffic volumes, impacting local air quality. Further monitoring will determine if changes to the current AQMA boundaries are required. Alternatively, it may be appropriate to consider a single M4 route AQMA given its significant and variable impact upon the residents of Newport making action planning for this single source simpler.

NB – The above diagram is merely to represent the variation in air quality results along the M4 through Newport and is not drawn to any scale.



Table 2.7 – Results of NO2 Diffusion Tubes 2016

Site ID Location Site Type Within

AQMA?

Triplicate or Co-located

Tube

Full Calendar Year Data Capture 2016 (%) ar

2016 Annual Mean Concentration (µg/m3) -

Bias Adjustment factor = 0.81 b

NCC1 Chepstow Road Kerbside Y N 92 36.0*

NCC2C 69 Glasllwch

Crescent Façade N N 100 38.2

NCC3A 13 Mill Street

(Caerleon) Façade N N 83 20.7

NCC4A 71 Glasllwch

Crescent Façade N N Monitoring Ceased 2015 due to lack of exceedance

NCC4B 67 Glasllwch


NCC5 Corporation Road Roadside Y N 100 33.2*

NCC6B 153 Malpas Road Roadside Y N 92 38.0*

NCC7A Glasllwch Lane Kerbside N N Monitoring Ceased 2015 due to lack of exceedance

NCC7B 64 Glasllwch


NCC8 High Street

Caerleon Roadside N N 100 42.1*

NCC9D 182 Corporation

Road Roadside N N 100 20.7*

NCC10C 97 Chepstow

Road Roadside N N Monitoring Ceased 2015 due to lack of exceedance

NCC10D 234 Stow Hill Façade N N 58 35.7

NCC11A *169 Caerleon Road (Macey’s)

Roadside N N 100 35.5*




AQMA?


Tube




NCC12A 73 George Street Façade N N 100 37.2

NCC13B 76 Capel Crescent Roadside N N 67 24.7*

NCC14A 48 Malpas Road Façade N N 100 43.8

NCC15 Glasllwch Crescent

Roadside N N 100 27.0*

NCC16A 40 Denbigh Road Roadside N N 92 33.8*

NCC17A 179 Malpas Road Façade N N 100 27.7

NCC18C 158 Bassaleg


NCC19B 177 Malpas Road Roadside N N Monitoring Ceased end of 2015: No relevant receptor, see NCC17A

NCC19C 94 Mendalgief

Road Façade N N 75 21.1

NCC20C 222 Corporation


NCC21D M4 Groundhog 1

(Old Barn) Roadside N Y 100 56.6

NCC22B 88 Chepstow

Road Roadside Y N 100 40.2*

NCC23E M4 Groundhog 2

(Old Barn) Roadside N Y 100 55.5

NCC24B 21 Caerleon Road

(Swift LGV) Roadside Y N Monitoring Ceased end of 2015: Tube moved to façade of the

nearest relevant receptor.

NCC24C 19 Caerleon Road Façade Y N 67.0 44.4




AQMA?


Tube




NCC25B Denbigh Road

((No 41) M4 slip road)

Roadside N N Monitoring Ceased 2015: No exceedance recorded.

NCC25C 19 High Street


NCC26B 15 High Street,


NCC27B 18 High Street,


NCC28B 155 Caerleon


NCC29B 79 Chepstow

Road (lib) Roadside N N Monitoring Ceased 2015: No Relevant Receptor / No Exceedance

NCC29C 5 Cefn Road Façade N N 75 39.8

NCC30 30 Wharf Road Façade N N 75 28.3

NCC31 Buckland Cottage Façade N N 100 44.3

NCC32D 372 Malpas Road Façade Y N Monitoring Ceased 2015:

Moved to neighbouring property with the same exposure potential.

NCC32E 376 Malpas Road Façade Y N 100 34.4

NCC33A 162 Bassaleg

Road Roadside N N Monitoring Ceased 2015: No relevant receptor, monitoring on

façade (NCC41B) considered more representative.

NCC33B 69 Cefn Road Façade N N 75 39.0

NCC34A The Priory, Caerleon

Façade N N 100 30.2




AQMA?


Tube




NCC35A 6 Castle Street,


NCC36A 1 Castle Street,


NCC37 St. Julian’s School

1 Urban

Background N Y 83 21.8


2 Urban



3 Urban


NCC40 158 Bassaleg

Road Roadside N N Monitoring Ceased 2015: Roadside location ceased, façade

location maintained – see NCC18C

NCC40A 14 Risca Road Façade N N 75 24.5

NCC41B 162 Bassaleg


NCC42 Mendalgief

(Cardiff) Road Roadside N N 92 29.7*

NCC43A 7 Castle Street


NCC44B 175/177

Corporation Road Façade N N 75 33.6

NCC45A 515 Malpas Road Façade N N Monitoring Ceased 2015: Results consistently close to background levels.

NCC45B 201 Corporation


NCC46B *148 Chepstow





AQMA?


Tube




NCC47A 9 Castle Street


NCC48C Cardiff Road Roadside N N Monitoring Ceased 2015: Results consistently at background levels.

NCC48D 85 Caerphilly


NCC49B 40 Chepstow

Road Façade N N Monitoring Ceased 2015: Results consistently close to background

levels.

NCC49C 8 Caerphilly Road Roadside N N 58 32.8*

NCC50 9 Caerleon Road

(tattoo) Roadside N N 92 42.2*

NCC51 81 George Street Façade N N 75 40.1

NCC52 9 Station Road

(Caerleon) Roadside N N 100 25.0*

NCC53 5 High Street


NCC54 96/98 Mill Street

(Caerleon) Roadside N N 92 22.8*

NCC55 116 Alexandra

Road Kerbside N N 75 29.8*

NCC56 Forge Close Façade N N 100 23.7

NCC57 30 Clytha Park

Square Façade N N 57 27.5

NCC58 1 Caerau Road Façade N N 67 35.6

NCC59 69 Commercial





AQMA?


Tube




NCC60 1 Victoria Place Roadside N N 70 37.3*

NCC61 119 Stow Hill Façade N N 75 31.0

NCC62 421 Malpas Road Façade N N 75 24.4

NCC63 88 Malpas Road Façade N N 75 34.2

NCC64 4-6 Malpas Road Façade Y N 75 46.1

NCC65 153/155

Chepstow Road Façade Y N 75 47.4

NCC66 109 Chepstow

Road Façade Y N 67 37.4

NCC67 1-17 Corporation


NCC68 Art College

Clarence Place Roadside N N 50 39.8

NCC69 180 Caerleon


NCC70 6 Burton Road Façade N N 75 26.1

NCC71 318 Caerleon


NCC72 340 Caerleon


NCC73 Southgate,

Whiteheart Lane Roadside N N 75 27.4*

NCC74 Coach House

Caerleon Façade N N 75 25.6




AQMA?


Tube




NCC75 19 GoldCroft

Common Façade N N 75 17.8

NCC76 10 Cross Street


NCC77 Toll House Caerleon

Façade N N 75 18.4

NCC78 Gwent Cottage


NCC79 276 Christchurch


NCC80 37 Old Langstone

Court Road Façade N N 75 26.2

In bold, exceedance of the NO2 annual mean AQS objective of 40µg/m3

Underlined, annual mean > 60µg/m3, indicating a potential exceedence of the NO2 hourly mean AQS objective

* = Distance corrected ** = Result annualized



Table 2.8 – Results of NO2 Diffusion Tubes (2012 to 2016)


AQMA?

Annual Mean Concentration (µg/m3) - Adjusted for Bias a

2012 (Bias Adjustment

Factor = 0.787)


Factor = 0.87)


Factor = 0.817)


Factor = 0.85)


Factor = 0.81) NCC1 Kerbside Y 33.7 42.6 34.6 34.4 36.0

NCC2C Façade N 36.1 40.4 39.9 40.3 38.2

NCC3A Façade N 21.6 23.5 22.9 19.5 20.7

NCC4A Façade N - 33.3 32.1 33.1 -

NCC4B Façade N - - - - 36.9

NCC5 Roadside Y 36.1 37.6 34.8 32.9 33.2

NCC6B Roadside N 38.7 42.5 39.8 41.1 38.0

NCC7A Kerbside N 33.5 40.8 34.9 34.9 -

NCC7B Façade N - - - - 30.0

NCC8 Roadside N 47.7 50.5 43.8 43.1 42.1

NCC9D Roadside N - 34.5 33.3 31.5 20.7

NCC10C Roadside N 27.5 29.6 26.8 25.6 -

NCC10D Façade N - - - - 35.7

NCC11A Roadside N - - - 33.6 35.5

NCC12A Façade N 37.1 37.5 33.6 37.0 37.2

NCC13B Roadside N - - - - 24.7

NCC14A Façade N 41.0 45.0 41.6 40.5 43.8

NCC15 Roadside N 34.0 35.9 31.7 28.5 27.0

NCC16A Roadside N 34.8 40.5 38.7 36.0 33.8

NCC17A Façade N 33.4 32.8 32.4 31.3 27.7

NCC18C Roadside N 36.5 40.9 38.7 39.6 34.5*




AQMA?



Factor = 0.787)


Factor = 0.87)


Factor = 0.817)


Factor = 0.85)


Factor = 0.81)

NCC19B Roadside N 35.3 38.9 38.3 36.1 -

NCC19C Façade N - - - - 21.2

NCC20C Roadside N - 38.5 42.4 32.3 39.7*

NCC21D Roadside N - - 58.3 61.8 56.6

NCC22B Roadside N 38.6 41.8 39.4 41.2 40.2*

NCC23E Roadside N - - 57.6 58.2 55.5

NCC24B Roadside N 41.9 44.3 40.6 38.4 -

NCC24C Façade N - - - - 44.4

NCC25B Roadside N 27.8 32.1 29.7 26.6 -

NCC25C Façade N - - - - 44.4

NCC26B Roadside N 57.1 67.5 55.5 56.3 54.1

NCC27B Roadside N 47.7 56.6 49.0 48.0 49.3

NCC28B Roadside N 39.5 42.1 38.9 38.9 41.1

NCC29B Roadside N 30.4 32.4 26.2 30.1 -

NCC29C Façade N - - - - 39.8

NCC30A Façade N - - - - 28.3

NCC31 Façade N 41.2 45.8 43.0 45.6 44.3

NCC32D Façade N 35.3 40.3 35.9 27.0 -

NCC32E Façade N - - - - 34.4

NCC33A Roadside N 32.3 34.2 33.3 34.0 -

NCC33B Façade N - - - - 39.0

NCC34A Façade N 33.1 37.3 35.0 34.0 30.2




AQMA?



Factor = 0.787)


Factor = 0.87)


Factor = 0.817)


Factor = 0.85)


Factor = 0.81)

NCC35A Roadside N 31.9 35.9 31.7 29.5 27.8

NCC36A Roadside N 29.2 35.6 30.5 26.7 26.1

NCC37 Urban

Background N 21.0 24.3 21.5 20.1 21.8

NCC38 Urban

Background N 22.2 23.5 19.7 20.7 23.6

NCC39 Urban

Background N 19.6 23.5 21.4 20.8 23.2

NCC40 Roadside N 31.2 32.2 30.1 32.5 -

NCC40A Façade N - - - - 24.5

NCC41B Façade N 34.5 39.0 35.6 30.9 32.7

NCC42 Roadside N - - - 27.0 29.7*

NCC43A Façade N 35.4 36.8 33.7 33.6 32.3

NCC44B Façade N - - - - 33.6

NCC45A Façade N 28.4 30.2 25.2 25.3 -

NCC45B Façade N - - - - 33.4

NCC46B Roadside N 46.0 52.9 46.5 48.9 44.4

NCC47A Façade N 39.2 43.4 40.4 38.5 37.0

NCC48C Roadside N - 25.2 27.0 27.8 -

NCC48D Façade N - - - - 50.8

NCC49B Façade N 27.4 26.5 26.6 24.1 -

NCC49C Façade N - - - - 32.8*

NCC50 Roadside N 42.4 37.8 35.5 39.1 42.2

NCC51 Façade N - - - 39.1 40.1




AQMA?



Factor = 0.787)


Factor = 0.87)


Factor = 0.817)


Factor = 0.85)


Factor = 0.81)

NCC52 Roadside N 24.0 26.9 24.9 23.7 25.0*

NCC53 Façade N 24.4 28.4 23.5 24.9 30.2

NCC54 Roadside N 19.5 22.3 19.8 19.5 22.8*

NCC55 Kerbside N 32.4 36.4 33.4 31.1 29.8*

NCC56 Façade N - - - 21.1** 23.7

NCC57 Façade N - - - - 27.5

NCC58 Façade N - - - - 35.6

NCC59 Façade N - - - - 25.8*

NCC60 Façade N - - - - 37.7*

NCC61 Façade N - - - - 31.0

NCC62 Façade N - - - - 24.4

NCC63 Façade N - - - - 34.2

NCC64 Façade N - - - - 46.1

NCC65 Façade N - - - - 47.4

NCC66 Façade N - - - - 37.4

NCC67 Façade N - - - - 34.3

NCC68 Façade N - - - - 39.8

NCC69 Façade N - - - - 29.4

NCC70 Façade N - - - - 26.1

NCC71 Façade N - - - - 26.7

NCC72 Façade N - - - - 26.7

NCC73 Façade N - - - - 27.4*




AQMA?



Factor = 0.787)


Factor = 0.87)


Factor = 0.817)


Factor = 0.85)


Factor = 0.81)

NCC74 Façade N - - - - 25.6

NCC75 Façade N - - - - 17.8

NCC76 Façade N - - - - 13.3

NCC77 Façade N - - - - 18.4

NCC78 Façade N - - - - 34.1

NCC79 Façade N - - - - 26.1

NCC80 Façade N - - - - 26.2

In bold, exceedance of the NO2 annual mean AQS objective of 40µg/m3

Underlined, annual mean > 60µg/m3, indicating a potential exceedence of the NO2 hourly mean AQS objective

** = Result annualized (NB any sites other than Façade relevant distance corrections have been applied).

Strikethrough – Tubes that have been removed



Figure 2.4 (page 46) shows the trend of tube data over the period 2010-2016. For

consistency, only tubes that been maintained throughout the period 201-2016 have

been used, tubes that have been removed, relocated or added during this period

have been discounted.

The trend indicates a general decline in the maximum concentrations measured over

this period. This is likely due to the removal of older more polluting vehicles with

uptake of cleaner vehicle technologies. Whilst the peak pollution levels have shown

improvement, the average and the minimum levels have not shown any significant

change over the same period.

The trend of the average is a useful indicator but it must be pointed out the actual

figures are bias towards the AQMA locations and number of tubes installed.

Therefore the average values of tubes within the monitoring programme cannot be

viewed as the average air quality within the city. Currently, the most appropriate data

to reflect background air quality levels is considered to be the St Julian’s Automatic

unit which is reported in Table 2.3 and Figure 2.6 (page 48)

Figure 2.4 demonstrates a trend declining maximum concentrations, however whilst

the maximum levels may be decreasing, it is important to understand if there has

been improvement across all tube levels.

Figure 2.5 plots the percentage of tubes within the 10-20, 20-30,30-40, 40+ µg/m3

bands. This appears to indicate no overall improvement in air quality, if anything

there is an increase in the percentage of tubes that are above the 40 µg/m3, which

may be due to increased congestion in already congested areas The peaks of air

pollution may have improved, but the extent of poor air quality has grown in area due

to increased traffic volumes and traffic congestion.

Figure 2.6 shows the average air quality over the period 2010-2016 form the co-

located St Julian’s tubes and M4 Unit. Over the 2010-2016 period the average tube

results have been consistent ~22.1µg/m3 with little to no variation outside of the

diffusion tube margin for error (+/- 20%).



Figure 2.7 – Trends in Annual Mean Nitrogen Dioxide Concentrations Measured at Diffusion Tube Monitoring Sites which have been in place for the period 2010-2016 (tubes that have been removed, relocated or added during this period have been discounted, these results are bias corrected but not distance corrected).



Figure 2.8 – Percentage of Nitrogen Dioxide Concentrations Measured at Diffusion Tube Monitoring Sites which have been in place for the period 2010-2016 (tubes that have been removed, relocated or added during this period have been discounted, these results are bias corrected but not distance corrected).



Figure 2.9 – Trends in Annual Mean Nitrogen Dioxide Concentrations Measured at St Julian’s Co-located with the Automatic Station for the period 2010-2016 (tubes that have been removed, relocated or added during this period have been discounted, these results are bias corrected but not distance corrected).



2.2.2 Particulate Matter (PM10)

The site is located within the yard of St Julian’s School and is classified as an urban

background monitoring location. Data capture for this monitoring period has been

good at 90%. The particulate results are consistent with previous years with an

average reading of 16 µg/m3



Table 2.8 – Results of Automatic Monitoring for PM10: Comparison with Annual Mean Objective


AQMA?


Valid Data Capture 2016 % b

Confirm Gravimetric Equivalent (Y or N/A)

Annual Mean Concentration (µg/m3)

2012* c 2013* c 2014* c 2015* c 2016 c

St Julian’s Urban

Background N 100 90 N/A 13 - 16 - 16

In bold, exceedence of the PM10 annual mean AQS objective of 40µg/m3

a i.e. data capture for the monitoring period, in cases where monitoring was only carried out for part of the year

b i.e. data capture for the full calendar year (e.g. if monitoring was carried out for six months the maximum data capture for the full

calendar year would be 50%)

c Means should be “annualised” as in Boxes 7.9 and 7.10 of LAQM.TG16, if valid data capture is less than 75%



Table 2.9 – Results of Automatic Monitoring for PM10: Comparison with 24-hour Mean Objective


AQMA?

Valid Data Capture for Monitoring Period %

Valid Data Capture 2016 %

Confirm Gravimetric Equivalent (Y or N/A)

Number of Daily Means > 50µg/m3

2012* 2013* 2014* 2015* 2016

St Julian’s Urban

Background N 100 67 N/A 2 3 3 3 1

In bold, exceedence of the PM10 daily mean AQS objective (50µg/m3 – not to be exceeded more than 35 times per year)



2.2.3 Particulate PM2.5

Since 2009 the St Julian’s site has been equipped to monitor for PM2.5. No

monitoring results have indicated excessive levels of PM2.5 that can be attributed to

any particular source.

Site ID Site Type

Valid Data Capture for monitoring period %

Valid Data Capture

2016 %

Mean PM 2.5 µg/m3

2012 2013 2014 2015 2016

St Julian’s

Urban Background

100 95 10 13 12 10 10

2.2.4 Summary of Compliance with AQS Objectives

From the 2016 monitoring period out of the 80 monitoring locations 17 exceedances

have been recorded of the 40 µg/m3 objective, with at least 14 locations exceeding

the 35µg/m3 threshold.

Of these exceedances four new AQMAs will be required and the implementation of

modified boundaries to three existing AQMAs will be investigated further and

implemented in 2018.

Newport City Council has measured concentrations of Nitrogen Dioxide above the

annual mean objective at relevant locations outside of the AQMA(s), and further

monitoring, amendments and declaration of AQMAs will be required.



3 New Local Developments

3.1 Road Traffic Sources

Existing Road Structure

In early 2016 a desk top review of all potential areas where poor air quality may

occur has been undertaken. This was a systematic approach highlighting any

potential sensitive receptor within close proximity of a busy road. This was followed

by a site visit to determine if the volume and composition of the traffic would be

sufficient to potentially cause poor air quality. A number of areas due to road traffic

sources have been identified using this approach, including:

- Stow Hill / Risca Road

- Caerphilly Road

- Cefn Road

- Caerleon Road / New Road (Belmont Hill) junction

- Clytha Park Square

Diffusion tubes were deployed at these site sites in early 2016. Of the additional 25

tube locations and 12 relocated tubes. Of these new tube locations, Caerphilly Road

and Cefn Road have both be found to exceed the Objective.

Proposed New Roads

M4 Relief Road

The proposed M4 relief road is still being considered by Welsh Government. Newport

City Council has been consulted on a number of documents regarding the proposed

motorway. It is considered the new route (once completed) will generally improve air

quality in the city by diverting traffic away from relevant receptors.

However, the build time of project is estimated to be 4 years and will require a

considerable number of HGV and staff movements, all of which will occur on the

existing road network. Therefore it is likely a negative air quality impact will be

generated during the construction phase of the project.



M4 Bridge Toll

A consultation regarding the M4 Bridge Toll was held in the early part of 2017. It has

now been announced that the bridge toll will be removed completely by 1st January

2019. It is predicted that this will increase the volume of road traffic in Newport from

both the M4 and local routes, which will impact upon local air quality.

Road Works

A number of large scale road works are currently underway or proposed in that may

impact upon local air quality. These include:

The electrification of the railway lines for which a number of road / rail bridges

will be replaced and major road junction improvements.

Junction 28 Road improvements.

M4 Brynglas Tunnels improvements

With the range of current / proposed roadworks the flow of traffic across the city will

be impacted, thus impacting local air quality. Newport City Council will continually

assess the air quality across the city to determine if these roadworks have made any

significant impact upon local air quality. Similar to the impact the Brynglas Tunnel

works have already appeared to have had on the M4 air pollution.

3.2 Other Transport Sources

There has been no change in other transport sources identified since the last round

of reporting.

3.3 Industrial Sources

There have been no additional industrial sources since the last round of reporting.

3.4 Commercial and Domestic Sources

There have been no known significant additional commercial or domestic sources.



3.5 New Developments with Fugitive or Uncontrolled Sources

There have been several ongoing residential developments that are in the process of

being completed. The large developments include Jubilee Park at Rogerstone,

Llanwern, Mon Bank and Corporation Road. All of these developments will continue

to generate additional road traffic to the road network contributing to congestion and

air pollution.

Newport City Council has identified a number of NEW locations on EXISTING

ROADS for which air quality standards might be exceeded due to road traffic

emissions that are currently not being monitored. Diffusion tubes have been

deployed.



4 Planning Applications

Crematorium

Planning Permission for a small scale crematorium was approved in 2015. This is

due to become operational in late 2017.

General

A number of large residential developments are still in the process of being built in

Phases, such as Glan Llyn, Rogerstone Jubilee Park and Mon Bank. During 2016

there were a number of small scale developments (~10 houses) at various sites

across the district. All of which will contribute additional traffic to the local road

network.



5 Air Quality Planning Policies

Supplementary Planning Guidance

Newport City Council has produced Supplementary Planning Guidance for air quality

which is due for consultation in 2017. The supplementary guidance will ensure it

reflects the policies outlined in the Local Development Plan 2011 – 2026 and

incorporate the principles outlined in the Well-being of Future Generations (Wales)

Act 2015.



6 Implementation of Action Plans

Newport City Council’s Air Quality Action Plan was first published in 2008.

Considerable work has gone towards achieving the goals set out in the 2008 Action

Plan. However it is now considered the Action Plan requires a significant update to

reflect work being carried out by Environmental Health that is not captured in the

current plan and to reflect technological advances, such as low emission vehicles.

A full review of the action plan is underway and is envisaged to be out for initial public

consultation in 2017.



7 Conclusions and Proposed Actions

7.1 Conclusions from New Monitoring Data

The monitoring results for the 2016 period are broadly similar to 2015. Road

improvements on the Brynglas Tunnels (M4) which involved night closures may have

contributed to a measurable improvement in air quality.

New monitoring locations on High Cross, Cefn Road, Caerphilly Road and George

Street have indicated exceedances which will require AQMAs to be declared.

Particulate levels have not shown any significant increase from their relatively low

levels. A comparison of PM10 levels to neighbouring PM10 monitoring sites suggest

our St Julian’s unit is monitoring background levels rather than any localised source

such as the M4 motorway.

7.2 Conclusions relating to New Local Developments

With the continued development of the city there have been a number of small to

large scale planning applications that will inevitably cause an increase in road traffic.

In 2016 the majority of planning impacts with respect to air quality have been phases

of large scale residential developments, such as Glan Llyn (former steel works).

7.3 Other Conclusions

The exiting Air Quality Action Plan (2008) is considered to be unworkable and

requires a full reassessment. A concerted effort will now be made to ensure a revised

action plan will be drafted and implemented by 2017. The new action plan will link

with, and reflect key policies in planning, health, education and transport providing a

coherent approach. It will also reflect the principles of the Well-being of Future

Generations (Wales) Act and sustainability.



7.4 Proposed Actions

This progress report has confirmed the actions outlined in the 2016 Progress Report

for which the following will be actioned in 2017:

1. Declare New AQMAs for:

a. Cefn Road

b. Caerphilly Road

c. George Street

Revised AQMA boundaries for:

d. Caerleon

e. Chepstow Road

f. Malpas Road

2. Public Consultation of a draft Air Quality Action Plan in2017.

3. Continued review and development of the air quality monitoring network.



8 References

Previous Air Quality Reports available at http://www.newport.gov.uk/airquality Newport City Council Air Quality Action Plan 2008 Local Air Quality Management - Technical Guidance LAQM.TG(16) Welsh Government M4 Corridor Enhancement Website (www.m4cem.com) LAQM / Defra website - http://laqm.defra.gov.uk/ Welsh Air Quality Website - http://www.welshairquality.co.uk/

http://www.newport.gov.uk/airquality

http://www.m4cem.com/

http://laqm.defra.gov.uk/




Appendices

Appendix A: Quality Assurance / Quality Control (QA/QC) Data

Appendix B: Monthly Tube Results 2015

Appendix C: Detailed Maps of Current AQMAs



Appendix A: QA/QC Data

Diffusion Tube Bias Adjustment Factors

Factor from Local Co-location Studies

A local bias adjustment factor has been calculated based on the triplicate tubes co-

located at our St Julian’s Automatic Unit as follows.

Based on the output calculation of the AEA Energy & Environment spreadsheet

(screen shot above), the following bias adjustment factor was calculated:

Bias B = 17%

0.17 + 1 = 1.17

1/1.17 = 0.85

Due to missing diffusion tubes during the July and August and September monitoring

periods, it was considered necessary to also use the National Bias Adjustment factor.

The screen shot of the results is provided below indicating an adjustment factor of

0.77 (based on the June 2017 edition – 03/17 v2).



An average of the two bias adjustment values 0.85 and 0.77 have been used:

Local Bias Adjustment Value 0.85 + National Bias Adjustment 0.77 =

1.62 / 2 = 0.81

Therefore a bias adjustment factor of 0.81 has been applied to all diffusion tube

monitoring data for 2016.

No adjustment for particulate monitoring has been undertaken.

QA/QC of Automatic Monitoring Newport City Council undertakes monthly calibrations of the PM10, PM2.5 and NOx

analyser. In addition calibrations are also conducted bi-annually for the PAH

analyser.

All equipment is audited annually by Ricardo to meet AURN requirements.

QA/QC of Diffusion Tube Monitoring

The WASP result for ESG laboratories was satisfactory throughout 2016.



Appendix B: Monthly Diffusion Tube Results 2016

Site Name X Grid Ref

Y Grid Ref

NCC ID TYPE Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Chepstow Road

331995 188415 NCC1 Roadside 58.4 47.4

46.8 44.4 41.8 31.9 35.7 38 47.4 46.6 50.5

69 Glasllwch Crescent

328333 187869 NCC2C Façade 60 53.6 46.1 44.6 44.5 38.8 39.6 40.4 43.2 44 52.2 58.8

13 Mill Street (Caerleon)

334092 190822 NCC3A Façade 33.7

24.6 23.1 20.6 19.2 18.8 20.9 24.8 31.7 38.5


328363 187895 NCC4B Façade

46.9 50.1 37.7 35.5 41 41.6 52.3 52.3 60.5

Corporation Road

332327 187773 NCC5 Roadside 56.3 50.1 52.3 49.3 46.7 40.2 40.1 38.9 42.8 42 47.8 61

153 Malpas Road

330565 189618 NCC6B Roadside 60.6 54.2 34.6 43.6 42.8 45.5 44.8 46 43.6 43.3

57.1


328421 187778 NCC7B Façade

31.7 40 34.6 27.3 29.2 32.8 38.2 42.4 56.8

High Street Caerleon

334105 190478 NCC8 Roadside 55.9 55.9 53.6 55.1 54.5 50.4 43.1 42 51.8 49.4 65.1 61.7

182 Corporation

Road 332062 187958 NCC9D Roadside 58 50.9 44.5 43.1 41.5 41.5 33.5 35.9 39.3 44.5 51.7 59.2

234 Stow Hill 330162 187628 NCC10D Façade

29.8 44.4

31.9 34.3 50.5 55.3 62.3

*169 Caerleon Road (Maceys)

332018 188987 NCC11A Roadside 53.5 49.9 47.1 44.8 44.6 40.4 29 32.4 35.4 39.4 53.8 60.5

73 George Street

331428 187498 NCC12A Façade 53.2 46.5 43.4 39.5 45.4 43.2 39.5 36.1 43.5 42.2 53.6 65.6

76 Capel Crescent

330932 187046 NCC13B Roadside

34.4 27.8 26.5 25.2 25.6 29.4 36.1 43.1

48 Malpas Road

330834 189310 NCC14A Roadside 55.3 58.2 53.9 59.1 55.4 51.5 33.3 42.3 47.3 57.5 63.3 72.4




Y Grid Ref


Glasllwch Crescent

328443 187809 NCC15 Roadside 59.9 49.1 38.5 39.5 37.7 34.6 31.3 33 35.8 37.1 47 57.3

40 Denbigh Road

332320 189703 NCC16A Roadside 53.1 43.7 43.9 46.8 46.5 41.4 28.5 34.8 38.7 50.5

57.1

179 Malpas Road

330507 189664 NCC17A Façade 52.1 37.2 38.7 6.4 36.4 31.6 24.5 29.2 34.8 32.8 38.1 48

Bassaleg Road (158/3)

328586 187008 NCC18C Façade 55.4 41.1 42.9 40.8 38.7 37.4 39.9 41.4 42.1 32 44.5 54.4

94 Mendalgief Road

331083 186688 NCC19C Roadside

29.6 25.7 23.2 18.4 22.1 22.7 29.7 38 35.8

222 Corporation

Road 332182 187872 NCC20C Roadside 77.2 62.6 52.4 55 47.9 49.9 45

47.8

66.3

M4 Groundhog 1

(Old Barn) 332690 189615 NCC21D Roadside 90.2 63.5 69.3 72.9 72.3 67 65.2 67.5 52.3 60.8 72.9 83.9

88 Chepstow Road

332091 188382 NCC22B Roadside 66.3 56.6 45.4 48.7 39.7 43.1 44.4 46.4 45.2 43.8 54.1 61.3

M4 Groundhog 2

(Old Barn) 332690 189615 NCC23E Roadside 79.4 71.7

70.9 64.3 60.6 57.2 65.4 59.7 75.4 80.6

19 Caerleon Road

331562 188549 NCC24C Façade

38.5 34.1 28.5 34.9 28.6 41.2 39.2 44

19 High Street (Caerleon)

334182 190422 NCC25C Façade

59.6 48 45.9 43.1 48.7 65.8 72.5

15 High Street, Caerleon

334131 190461 NCC26B Roadside

69.5 63.5 72.8 66.6 76.9 51.4 54.9 56.3 74.6 83 82.2

18 High Street, Caerleon

334143 190454 NCC27B Roadside 71.6 66.3 70.2 65.2 61.4 68.7 45.2 47.6 48.9 58.2 75.2 75.2

155 Caerleon Road

332047 189070 NCC28B Roadside 64 55.7 54.8

44.3

36.5 48

63.4




Y Grid Ref


5 Cefn Road 327600 188468 NCC29C Façade

49.4 47 44 41 36.3 43.8 50.1 58.3 71.8

33 Wharf Road 332190 188055 NCC30B Roadside

36.2 37.2 31.9 24.6 27.3 29.5 35.5 45 47.2

Buckland Cottage

332047 189070 NCC31 Façade 50.5 58.9 62.5 52.4 57.8 49.1 35.8 39.4 39.2 62.1 88.8 60.2

376 Malpas Road

330421 190537 NCC32E Façade 53.1 49.6 46.5 40.6 43.6 39.2 31.2 28.2 32.1 44.5 48.4 51.9

69 Cefn Road 327390 188551 NCC33B Façade

40 36.9 30.7 27.9 32.3 35.6 36.8 49 61.9

The Priory, Caerleon

334010 190532 NCC34A Façade 54.7 47.5 37.8 4.3 38.5 36 36.5 31.7 35.1 33.8 46 46.2

6 Castle Street,

Caerleon 334232 190463 NCC35A Roadside 53.4 43.5 37.8 35.2

28 31.8 32.6 33.6 30.3 42.7 39.2

1 Castle Street,

Caerleon 334260 190479 NCC36A Roadside 51.3 38.3 38.3 32.9 32.2

29 31.6 29.6 34.2 45.7

St. Julians School 1

332499 189569 NCC37 Backgrou

nd 31.3 26.7 23.3 20 21.9 22.6

22.3 27.7 35.5 38.1


332499 189569 NCC38 Backgrou

nd 31.4 29.8 29.6 26.4 25.4 23

17.2

30.6 36.1 41.9


332499 189569 NCC39 Backgrou

nd 32.9

27.9 25.7 26.1 20.7

17.6

31 35.7 40.2

14 Risca Road 330065 187669 NCC40A Roadside

15.1 28.9 26.1 19.7 24.9 27.5 38.2 43.3 48.7

Bassaleg Road (162/3)

328537 187005 NCC41B Façade 47.9 37.2 49.7 47.6 45.7 36.1 19.8 22.7 32.9 45.2 51.7 48.2

Mendalgief (Cardiff) Road

330915 187046 NCC42 Roadside 44.2

24.7 33.8 35 31.9 26 25.7 31.4 42.6 53.3 50.8

7 Castle Street (Caerleon)

334212 190446 NCC43A Roadside 46.7 41.9 40.6

36.2 44.6 34.1

32.3 32.4 45.9 44.1

175/177 Corporation

Road 332048 187989 NCC44B Roadside

50.8 41.5 35.8 28.3 29.3 34.9 43.4 51.2 57.9




Y Grid Ref


201 Corporation


41.1 43.7 41.5 29.2 32.7 35.1 46.1 53.6 48.2

*148 Chepstow


63.2 56.7 53.7 52.9 50.2 52.8 46.6 51.1 47.9 52.1 75.5

9 Castle Street (Caerleon)

334199 190431 NCC47A Roadside 50 41.3 48.7 45.5 44.6 44.2 33.7 38 40.1 48.2 55.2 59.2

85 Caerphilly Road

327053 186943 NCC48D Roadside

61.5 61.9 58.1 59.1 58.8 61.2 53 68.4 82.5

8 Caerphilly Road

327631 187043 NCC49C Roadside

45.2 38.9 27.4 34.9 34.9 50.1 61.6

9 Caerleon Road (tattoo)

331531 188536 NCC50 Roadside 67.3 60.8 43.8 58.1 55.4 48.6

44.2 45.1 51.7 63.9 68.2

81 George Street

333751 190785 NCC51 Façade 59.3 48.3 49.3 43.9 38.6 45.6 43.8 46.7 42.7 47.4 57.8 70

9 Station Road (Caerleon)

333880 190970 NCC52 Roadside 41.4 36.2 36.2 33.6 29.8 25.4 22.1 28.1 27 34.2

5 High Street (Caerleon)

333598 190556 NCC53 Roadside 38.7 33.4 33 30.2 29.2 23.9 19 19.3 22.4 33.3

96/98 Mill Street

(Caerleon) 334279 190593 NCC54 Roadside 34.2

20.5 20.6 20 17.9 19.4 18.7 16.7 22.3

116 Alexandra Road

331536 186222 NCC55 Roadside 52.5

38.6 38.7 37.8 37.9 40.1

40.1

29 Forge Lane 328015 186383 NCC56 Façade 36.5 27.2 31.5 29.6 31.9 23.9 15.6 18.9 23.1 34.3

30 Clytha Park Sq (Spar)

330581 188070 NCC57 Roadside

40.5 34.2 28.4 18.9 22.1 25.2 36.7 44.9 54.3

1 Caerau Road 330563 188037 NCC58 Roadside

43.5 38.9 35.8

28.9 35.1 43.4 50.6 75.6

69 Commercial Street

331552 187056 NCC59 Roadside

29.7 30.8 25.8 21.7 20.9 30 36.1 44.1 47.7




Y Grid Ref


1 Victoria Place

331010 187733 NCC60 Roadside

37.6 40.3 45.5 37.8 40.3 44.6 50.1 60.5 61.8

119 Stow Hill 330793 187566 NCC61 Façade

27.3 38.4 33.6 31.2 34.8 36.5 40 45.8 56.8

421 Malpas Road

330456 190646 NCC62 Façade

31.9 29.3 26.3 17 21.8 27.9 32.4 39.9 55.4

88 Malpas Road

330743 189444 NCC63 Roadside

41.7 44.7 36.3 27.4 34.2 36.6 46.9 55 57.6

4-6 Malpas Road

330891 189199 NCC64 Roadside

59.4 57.8 55.6 31.9 42.7 45.8 66.3 74.1 79

153/155 Chepstow

Road 330456 190646 NCC65 Roadside

60.5 53 60 47.3 51.2 53.6 59.1 70.7 71.3

109 Chepstow Road

332204 188374 NCC66 Roadside

50.5 47.8 35.9 27.7

39.9 53.1 55.7 58.6

1-17 Corporation

Road 331529 188476 NCC67 Façade

43.6 43.8 37.2 39.8 41.3 36.6 39.3 46.8 52.3

Art College, Clarence Place

331386 188461 NCC68 Roadside

54.3 49 46.2 39.7

50.1

71.6

180 Caerleon Road

332089 189160 NCC69 Roadside

36

28.5 27.2 31.2 36.7 45.9 48.3

6 Burton Road 332774 189609 NCC70 Façade

29.6 36.9 25.4 31.3 28.8 30.3 25 37.5 45

318 Caerleon Road

332226 189703 NCC71 Façade

36.3 31.2 28.4 23.8 25.2 31.3 34.7 41.9 43.4

340 Caerleon Road

332325 189809 NCC72 Façade

30.5 27.1 25.3 25.2 27.1 27.4 33 47.3 53.6

Southgate, Whitehart

Lane 334123 190374 NCC73 Roadside

28.4 36 34.2 26.7 28.2 31.8 37.3 45.7 55.5

Coach House, Caerleon

334155 190408 NCC74 Façade

26.2 32.1 28.4 26.2 25.2 28.1 33.6 40.6 43.8




Y Grid Ref


19 Goldcroft Common

33375 190785 NCC75 Façade

22.9 19.6 17.8 14.1 12.1 18.3 21.1 30.8 41.3

10 Cross Street,

Caerleon 334085 190587 NCC76 Roadside

4.9 8.3 15.4 14.7 15.1 15.3 17.4 26.7 30.6

Toll House, Caerleon

334195 190186 NCC77 Roadside

18.8 22.5 19.7 18.7 20.9 19.6 21.5 27.2 36.1

Gwent Cottage, Caerleon

334208 190186 NCC78 Façade

45.1 42.2 43.9 28.4 32.4 31.4

55 58.8

276 Christchurch

Road 334221 188885 NCC79 Façade

26.7 32.9 27.8 39.2 27.7 22.5 30.9 41 41

37 Old Langstone Court Road

336869 189623 NCC80 Façade

34.9 31.8 28.3 27.8 26.8 28 29.4 38.3 45.3



Appendix C: Detailed Maps of AQMAs within the Newport City District The AQMA boundaries can be view online via the following link: http://my.newport.gov.uk/iShare/mynewport.aspx?tab=2

http://my.newport.gov.uk/iShare/mynewport.aspx?tab=2

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