The national near-road mobile source air toxics study
The National Near-Road Mobile Source Air Toxics Study was designed to evaluate short-term effects of traffic emissions and meteorology on air quality. Mobile source air toxics (MSAT) of interest to this project are 1,3-butadiene, benzene, acrolein, acetaldehyde and formaldehyde. Highly time resolved data on concentrations of MSAT and other mobile source-related air pollutants in conjunction with time resolved meteorology and traffic measures were collected. These data collected a 1-yr period will allow for an analysis of seasonal differences in air quality impacts. Preliminary results showed that air pollution concentrations are correlated with distance from the source (roadway) and meteorology (i.e., wind direction and wind speed). This is an abstract of a paper presented at the 102nd Air & Waste Management Association Annual Conference and Exhibition (Detroit, MI 6/16-19/2009).
