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U.S. Department of Energy
Office of Scientific and Technical Information

Toxic volatile organic chemicals in urban air in Illinois

Technical Report ·
OSTI ID:5935663
The airborne concentrations and sources of 13 toxic volatile organic chemicals (VOCs) were evaluated in three urban areas in Illinois: southeast Chicago, East St. Louis and Granite City. VOC concentrations and meteorology were monitored between May 1986 and April 1990. Using emissions inventories and source signatures developed for the study areas, the authors applied wind trajectory analysis, factor analysis and chemical mass balance to the data. The statistical analysis indicates that most of the toxic VOCs in the study areas come from urban area sources such as vehicle exhaust, evaporation of petroleum products, and solvent emissions by commercial and industrial sources. Emissions of benzene from coke ovens in Chicago and several aromatic and chlorinated hydrocarbons from a chemical complex in Sauget produce high concentrations of these chemicals in ambient air within 1 km of these sources. However, these emissions do not have a large impact on the overall air quality in the study areas. The authors conclude that to reduce average concentrations of the target VOCs in the study areas, controls on area sources would be most effective. Additional controls on large industrial point sources would help reduce ambient levels of toxic VOCs within 1 km of these sources.
Research Organization:
Illinois Dept. of Energy and Natural Resources, Champaign, IL (United States). Hazardous Waste Research and Information Center
OSTI ID:
5935663
Report Number(s):
PB-92-113737/XAB; HWRIC-RR--057
Country of Publication:
United States
Language:
English