California Air Resources Board

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Central California Air Quality Studies
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Previous Central California Air Quality Studies
       SARMAP ozone study
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Additional Information
       PM Fact Sheet
       Glossary of Air Pollution Terms

How Science is Charting the Path to Cleaner Air
May 17, 2006 in Fresno, California

The Central California Air Quality Studies (CCAQS) comprise two studies, the California Regional Particulate Air Quality Study (CRPAQS) and the Central California Ozone Study (CCOS). CCAQS is a multi-year effort of meteorological and air quality monitoring, emission inventory development, data analysis, and air quality simulation modeling.


CRPAQS monitoring occurred during a 14-month study period, between December 1999 and February 2001.

CCOS monitoring took place during the summer of 2000.

These studies utilized 500 instruments at over 100 monitoring locations to measure and analyze for 600 parameters. Additional data was obtained from supplemental data sources. It is anticipated that the database management system will manage 150 million records.

This site is best viewed in Internet Explorer 5.0 or later and 1024x768 resolution.

Please send questions and comments regarding the CCAQS site to: CCAQSDataAdmin

To receive air quality modeling related email:
Air Quality Modeling Listserv.

Updated June 6, 2006