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 Air Quality Monitoring Network

The monitoring network provides data concerning Pinal County’s air quality so that we can assess compliance with the National Ambient Air Quality Standards (NAAQS) as required by the Federal Clean Air Act. The federal Environmental Protection Agency (EPA) sets air quality standards to protect our health. The standards define how much air pollution is safe in the air outdoors.

Pinal County Air Quality currently measures ozone and particulate matter levels by operating a network of monitoring and sampling equipment throughout Pinal County. The equipment at an air monitoring station can vary from a complex array of continuous air monitors that operate 24 hours a day year-round to a single sampler with a filter that captures particulates every 3—6 days. Data generated from this monitoring network is carefully reviewed, edited and analyzed prior to submittal into EPA’s national air quality database referred to as the Air Quality System (AQS).  The Air Quality Report page has the current and recent pollutant concentrations and AQI values.  The data files below contain historical data for our continuous particulate matter and ozone monitors.


DRAFT 2017 PM10 Exceedances

DRAFT 2016 PM10 Exceedances

 Network Plans

 Information

 AQS Data Mart - Website to download air quality data (ozone, particulate matter) that's been submitted to the EPA Air Quality System (AQS) database

AQI Daily Air Quality Reporting - The Air Quality Index (AQI) is a mechanism for reporting daily air quality. It tells you how clean or polluted your air is, and what associated health effects might be of concern to you. The AQI focuses on your health and the effects air quality may have upon you within a few hours or days after breathing polluted air.

 

 

 

 Archives

 Network Assessment

 2015

 Special Studies

 OZONE Data

Apache Junction

2014, 2015, 2016, 2017

Casa Grande

2014, 2015, 2016, 2017

Pinal Air Park

2014, 2015, 2016, 2017

 Particulate Matter (PM2.5) Data

Apache Junction Continuous

Filter - 2016, 2017

Casa Grande Continuous - 2016, 2017 Filter - 2016, 2017
Hidden Valley Continuous - 2016, 2017 Filter - 2016, 2017

 Particulate Matter (PM10) Data

2015 PM10 Exceedances
Apache Junction (Continuous) - 2015, 2016, 2017
Casa Grande (Continuous) - 2014, 2015, 2016, 2017
Combs (Continuous) - 2014, 2015, 2016, 2017
Coolidge (Filter) - 2015, 2016, 2017
Cowtown - Discontinued 12/31/15 (Continuous) - 2014, 2015
Eloy (Filter) - 2015, 2016, 2017
Eloy - Established 4/1/16 (Continuous) - 2016, 2017
Hidden Valley - Established 1/1/16 (Continuous) - 2016, 2017
Maricopa  (Continuous) - 2014, 2015, 2016, 2017
Pinal Air Park (Continuous) - 2014, 2015, 2016, 2017
Pinal County Housing (Continuous) - 2014, 2015, 2016, 2017
Stanfield (Continuous) - 2014, 2015, 2016, 2017