Significance of regional source contributions to urban PM-10 concentrations

Journal Article · Sun Nov 01 04:00:00 EST 1987 · J. Air Pollut. Control Assoc.; (United States)

DOI:https://doi.org/10.1080/08940630.1987.10466322· OSTI ID:5412876

Batterman, S A; Fay, J A; Golomb, D

Based on data collected in St. Louis, Philadelphia and other eastern US cities, we conclude that a significant fraction of the PM-10 concentration is background. In these urban areas the background fraction ranges from 35 to 80 percent of the daily, monthly or annual concentration. The bulk of the background appears to be of regional origin. The average chemical makeup of eastern US PM-10 is sulfate as SO/sub 4/, 21-34 percent; crustal material, 14-39 percent; unknown (carbonaceous matter, ammonium, nitrate and water), 36-51 percent, all of which is difficult to apportion to specific sources. Dispersion modeling using a local source inventory can account only for a small portion of the total PM-10 mass. Emission roll-back of local sources may have a limited effect on reducing total concentrations of PM-10.

• Research Organization: Massachusetts Institute of Technology, Cambridge (USA)
• OSTI ID: 5412876
• Journal Information: J. Air Pollut. Control Assoc.; (United States), Journal Name: J. Air Pollut. Control Assoc.; (United States) Vol. 37:11; ISSN JPCAA
• Country of Publication: United States
• Language: English

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500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION
AMMONIUM COMPOUNDS
ANNUAL VARIATIONS
DAILY VARIATIONS
ECOLOGICAL CONCENTRATION
FEDERAL REGION III
FEDERAL REGION VII
MATHEMATICAL MODELS
MISSOURI
MONTHLY VARIATIONS
NITRATES
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NORTH AMERICA
ORGANIC MATTER
OXYGEN COMPOUNDS
PENNSYLVANIA
POLLUTION
POLLUTION SOURCES
SULFATES
SULFUR COMPOUNDS
URBAN AREAS
USA
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