(air quality system) · 19-12-2014 · carb pqao training module ii december 19, 2014 . fletcher...

AQS (Air Quality System)

CARB PQAO Training Module II December 19, 2014

Fletcher Clover EPA Region 9

AQS OVERVIEW & REQUIREMENTS

• EPA’s database for regulatory actions • Design value calculations • Raw data

• Includes the following types of data: • Ambient concentrations • Monitor/site metadata • QA data (precision & accuracy)

• Data submittal requirements • All data collected must be submitted to AQS no later than 90 days after the

quarter in which the data was collected • Extremely Important to submit data to AQS on time!! • Late submittal of data causes may issues with design value calculations,

which could hold up important regulatory actions.

MONITORING METADATA

• Monitor metadata can be equally important as the ambient concentration data

• Incorrect metadata may lead to data issues or errors in data interpretation

• Examples of important AQS metadata fields:

• Method code • Spatial scale & distance to roadways • Sampling frequency • Monitor start/close dates • Primary monitor

THERE ARE MANY KINDS OF REPORTS IN AQS… AMP 390 – Monitor Description Report

AMP 430 – Data Completeness Report AMP 300 – Violation

Day Count Report AMP 350NW – Raw Data NAAQS Averages Report

AMP 450 – QuickLook Report

AMP 600 – Data Certification Report

AMP 350 – Raw Data Report

AMP 480 – Design Value Report

…WHICH AQS REPORT IS RIGHT FOR YOU?

Q: What AQS report would you use to find out if a monitor’s method code has changed in the past five years?


Q: What AQS report would you use to find out if a monitor’s method code has changed in the past five years?

A: The Monitor Description Report – AMP 390


Q: What AQS report would you use to find out the percent of PM10 data that has been reported for a monitor in 2013?


Q: What AQS report would you use to find out the percent of PM10 data that has been reported for a monitor in 2013?

A: The Data Completeness Report – AMP 430

AQS FORMS

Q: How would you update this metadata?

A: The Maintain Monitor form!

NULL DATA CODES, QUALIFIER CODES, and FLAGS

• Null Data Codes • Data is determined to be invalid • Null data does count toward completeness

• Qualifier Codes • Data does not meet a particular criteria, but has been

determined to be valid • 1: deviation from CFR/critical criteria • SX: does not meet siting criteria

• Informational Flags (“I” series) • Related to external environmental conditions

• J: construction • IT: wildfire

• Request for Exclusion Flags (“r” series) • Formal request for data exclusion under the Exceptional

Events Rule (EER) • rj: high winds • rt: wildfire


AA BA BD AB AC

AF BE

BM AA MB AW AU BC

AV BD BJ

AP AQ ST SA

AZ MC DA

AM XX DL TS

AN AI BH

BL BM BN AD

FI AE TC

BD AS

AA BA

AT

BL

AB

SC AW

DL

XX

AX

SA BM AF AJ

BD AE

FI

DL

TC

AR

AB

CS

AB

MC AV

AA AY ST

BH BE

DA BA AB AY

AT

AL BF

BD ST

BB

AN AO AJ

BR AR

AH

BK AK

AG BI

AX AS

CS

2013 PM2.5 FRM NULL DATA CODE DISTRIBUTION

2013 O3 NULL DATA CODE DISTRIBUTION

AQS DATA CODING EXERCISE

DESCRIPTION: Site technician takes an ozone analyzer off-line and performs a one-point QC check POSSIBLE CODE/FLAGS:

AX: Precision Check

AY: QC Control Points

(zero/span)

BF: Precision/Zero/Span

AC: QC Audit

BD: Auto Calibration

AQS DATA FLAGGING EXERCISE

DESCRIPTION: Audit team performs a semi-annual flow check on a PM2.5 FEM BAM1020 POSSIBLE CODE/FLAGS:

AM: Miscellaneous Void

AT: Calibration

BL: QA Audit

BM: Accuracy Check

BC: Multi-Point Calibration


DESCRIPTION: During a filter weighing session, the lab technician discovers that there is a fingerprint on the filter. POSSIBLE CODE/FLAGS:

FI: Filter Inspection Flag

AQ: Collection Error

AR: Lab Error

BJ: Operator Error

AJ: Filter Damage


DESCRIPTION:

A PM10 BAM-1020 measures an hourly concentration of 985 µg/m3 for 2 hours. The preceding and following hourly averages were 675 and 700 µg/m3, respectively.

POSSIBLE CODE/FLAGS:

5: Outlier

DL: Detection Limit

Analysis

AV: Power Failure

EH: Exceeds Upper Limit

DA: Aberrant Data


DESCRIPTION: An ozone probe is within 10 m of a tree dripline.

POSSIBLE CODE/FLAGS:

AM: Miscellaneous void

SX: Does Not Meet Siting

Criteria

QX: Does Not Meet QC

Criteria

SC: Sampler

Contamination

3: Field Issue


DESCRIPTION: Site operator does not lock the door to the monitoring site and leaves a sandwich on top of an ozone analyzer. A bear enters the site and destroys everything. POSSIBLE CODE/FLAGS:

6: QAPP Issue

AP: Vandalism

BJ: Operator Error

BK: Site Computer/Data

Logger Down

AW: Wildlife Damage


• Code/Flag Recommendations • Always code missing data • Use descriptive qualifier codes or informational flags

as much as possible • Do not use the Miscellaneous Void (AM) null data

code • CONSISTENCY

• AQS coding should be part of the data validation SOP • Rationale for data code/flags should be supported by

the appropriate DOCUMENTATION • Station logbooks • QC check & audit documentation • Maintenance records • Validation records

TOP 10 ISSUES WITH AQS

1. No monitor open/close date 2. Incorrect method codes 3. Incorrect sampling frequency (PM2.5/PM10) 4. “Other” monitor type 5. No designated primary monitor (affects collocation) 6. Incorrect parameter code (i.e FEM monitors w/ non-regulatory codes) 7. Missing QA/QC data 8. Incorrect use of null data codes 9. Late or missing data 10. Outdated QAPPs

How to get to AQS

• Register for a User ID and password • Fill out and sign AQS User Registration and Security Guidelines

forms • Mail or FAX both sheets to EPA, NADG (919) 541-7674 or via email

to [email protected]

• Once registered, you will be emailed an AQS Userid and password.

• Use your Java-enabled web browser to go to http://www.epa.gov/ttn/airs/airsaqs/aqsweb/

mailto:[email protected]

AQS UPDATES

• AQS user IDs will be discontinued • AQS will switch to using Exchange Network IDs

• Support for Discoverer has already been dropped • EPA is developing a web application for outside (non-EPA) users

• Currently working on a PM10 combined site report • Update to allow for batch upload to monitor metadata fields • Support for the 80 character SAROAD card-image transaction format

will be dropped • EPA has posted a program on the AQS TTN website to convert these

transactions to delimited format • AQS will be switching from Screening Groups to Agency Roles • Expansion of seasonal sampling for all pollutants • Support for multiple/simultaneous file upload

RESOURCES

• http://www.epa.gov/ttn/airs/airsaqs/ • User Registration - http://www.epa.gov/ttn/airs/airsaqs/registration.htm

• Send AQS User Registration and Security Guidelines forms to Fletcher Clover ([email protected])

• Manuals & Guides (AQS User Guide, AQS Data Coding Manual, etc.) • Past AQS Conference materials • Frequent Questions • Memos (AQS Patch Descriptions, Technical Notes, Updates/Changes, etc.)

http://www.epa.gov/ttn/airs/airsaqs/http://www.epa.gov/ttn/airs/airsaqs/registration.htm

RESOURCES

• Region 9: Fletcher Clover • 415.972.3991 • [email protected]

• EPA Helpdesk • 866.411.4372 • [email protected]

AQS�(Air Quality System)AQS OVERVIEW & REQUIREMENTSMONITORING METADATATHERE ARE MANY KINDS OF REPORTS IN AQS……WHICH AQS REPORT IS RIGHT FOR YOU?…WHICH AQS REPORT IS RIGHT FOR YOU?…WHICH AQS REPORT IS RIGHT FOR YOU?…WHICH AQS REPORT IS RIGHT FOR YOU?AQS FORMSSlide Number 10A: The Maintain Monitor form!A: The Maintain Monitor form!A: The Maintain Monitor form!NULL DATA CODES, QUALIFIER CODES, and FLAGSNULL DATA CODES, QUALIFIER CODES, and FLAGS2013 PM2.5 FRM NULL DATA CODE DISTRIBUTION2013 O3 NULL DATA CODE DISTRIBUTIONAQS DATA CODING EXERCISEAQS DATA FLAGGING EXERCISEAQS DATA CODING EXERCISEAQS DATA CODING EXERCISEAQS DATA CODING EXERCISEAQS DATA CODING EXERCISENULL DATA CODES, QUALIFIER CODES, and FLAGSTOP 10 ISSUES WITH AQSHow to get to AQSAQS UPDATESRESOURCESRESOURCES

(air quality system) · 19-12-2014 · carb pqao training module ii december 19, 2014 . fletcher...

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