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Environ Monit Assess

Title:		Ambient air quality at the site of a former manufactured gas plant
Author(s):		Collins MJ; Williams PL; MacIntosh DL;
Address:		"Department of Environmental Health Science, University of Georgia, Athens, Georgia, USA"
Journal Title:		Environ Monit Assess
Year:		2001
Volume:		68
Issue:		2
Page Number:		137 - 152
DOI:		10.1023/a:1010747225479
ISSN/ISBN:		0167-6369 (Print) 0167-6369 (Linking)
Abstract:		"Prior to the 1950's, manufactured gas was commercially produced from the pyrolysis of coal, coke, and oil at facilities that are termed manufactured gas plants (MGPs). The constituents of residual coal tar present on many MGP sites are an environmental health concern because of their toxicity and the possibility for their off-site migration via water and air. Atmospheric concentrations of five volatile organic compounds (VOCs, e.g., benzene), sixteen polycyclic aromatic hydrocarbons (PAHs, e.g., naphthalene) and particulate matter less than 10 microns in aerodynamic diameter (PM10) were measured at the site of a former MGP. Air samples were obtained before, during, and after excavation of subterranean coal tar at the site. The results of this investigation indicate that subterranean coal tar was not a primary source of VOCs and PAHs in the local atmosphere before or after remediation of the site. However, excavation, treatment, blending, and transfer of the coal tar during remediation generated concentrations of selected aromatic and semi-volatile organic compounds that were substantially greater than typical ambient levels. In addition, these data suggest that blending and mixing of coal tars could lead to exceedance of the U.S. National Ambient Air Quality Standard for PM10, although additional research is required to fully evaluate this possibility. Nuisance odors associated with the site remediation were likely the result of naphthalene and possibly isomers of xylene. Air pollutant concentrations measured adjacent to the excavation area and at the site perimeter during remediation activities were less than the relevant occupational and environmental exposure limits"
Keywords:		Air Pollution/*analysis Benzene/analysis Coal/analysis Environmental Exposure/analysis/standards *Environmental Monitoring *Fossil Fuels Georgia Government Agencies Industry Odorants/analysis Particle Size Polycyclic Aromatic Hydrocarbons/analysis Researc;
Notes:		"MedlineCollins, M J Williams, P L MacIntosh, D L eng Research Support, Non-U.S. Gov't Netherlands 2001/06/20 Environ Monit Assess. 2001 May; 68(2):137-52. doi: 10.1023/a:1010747225479"