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MOBILE SOURCE HAZARDOUS AIR POLLUTANT EMISSIONS IN THE SEATTLE-TACOMA URBAN AREA
Citation:
Mangino, J. AND J. Jones. MOBILE SOURCE HAZARDOUS AIR POLLUTANT EMISSIONS IN THE SEATTLE-TACOMA URBAN AREA. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/A-95/024.
Description:
The paper describes mobile source hazardous air pollutant (HAP) emissions in the Seattle-Tacoma, Washington, Urban area. obile sources have been identified as significant contributors to HAP emissions in urban areas. PA is working in partnership with the Puget Sound Air Pollution Control Agency to develop a HAP emission inventory for the Seattle-Tacoma area. ncluded in this inventory are mobile source emissions from both on-road (e.g., highway vehicles) and non-road (e.g., agricultural equipment) mobile sources. hese mobile source emission estimates, summarized in this paper, were developed based on volatile organic compound (VOC) emissions and activity level data from the Seattle-Tacoma 1990 base year State Implementation Plan (SIP) emission inventory. n-road mobile source HAP emissions were developed using the VOC emissions data and speciation profiles for diesel and gasoline vehicles. on-road mobile source HAP emissions were developed using VOC emissions data and speciation profiles, supplemented by the use of SIP activity level data with HAP-specific emissions factors. he contribution of mobile source HAP emissions was compared to that of stationary area sources in the Seattle-Tacoma area. obile sources contributed about 83% of the benzene, 74% of the formaldehyde, and 88% of the 1.3-butadiene emissions.