California Air Resources Board

FRESNO – Ozone and particulate matter, the two most problematic pollutants for the San Joaquin Valley, were the focus of a symposium Wednesday. Sponsored by the California Air Resources Board (ARB), the San Joaquin Valley Air Pollution Control District (SJVAPCD), and the Central California Air Quality Studies Government-Private Sector Partnership, the symposium announced the findings of two studies: the California Regional Particulate Air Quality Study (CRPAQS) and the Central California Ozone Study (CCOS).

"Our region faces major air quality challenges," said Air Resources Board member Barbara Patrick. "This symposium allowed technical information regarding these challenges to be presented in a public-friendly forum. Information from these projects will help us better protect public health"

The CRPAQS and the CCOS were designed to better understand the origins and characteristics of Central Valley particulate and ozone pollution. By examining air patterns and weather changes, the studies provided more detailed information about the rates of emissions and the variation of weekday and weekend patters. The studies also quantified the region's air quality impacts from population growth and the distribution of commodities throughout the state. The new information will help policymakers as they develop strategies to achieve state and federal standards for particulate matter and ozone.

Combined these studies represent an investment of $60 million and 20 years of research efforts by federal, state and local governments in cooperation with private industry. The information and scientific advancements that result from this research lays the foundation for strategic air quality plans that include incentives, regulations, and the State Implementation Plan (the state's blueprint to meet state and federal air quality standards).