Composite receptor method applied to Philadelphia aerosol

Technical Report · Fri Jan 01 04:00:00 EST 1988

OSTI ID:6958416

Dzubay, T G; Stevens, R K; Gordon, G E; Olmez, I; Sheffield, A E

Particles were collected in dichotomous samplers at three sites in the Philadelphia area during summer, 1982, and analyzed by x-ray fluorescence, instrumental neutron activation, pyrolysis, and ion chromatography. An intermethod comparison showed that fine-fraction results agreed within measurement error for S, Ca, Mn, Fe, Zn and Sb. A composite of chemical mass balance, multiple linear regression, and stratification by wind direction was used to apportion mass into ten categories. Primary emissions from residual-oil combustion, catalytic crackers, an antimony roaster, and municipal incinerators contributed less than 10% of PM-10. The portions of average PM-10 attributed to crustal matter and vehicle exhaust were 17 + or - 2 and 6 + or - 2, respectively. That attributed to sulfate plus related water and ions was 50 to 55%. Wind-stratified data indicated that 80 + or - 20% of the sulfate was from a regional background. Multiple linear regression of S vs tracers Se and either V or Ni indicated that 72 + or - 8 and 16 + or - 5% could be attributed to coal- and residual oil-fired power plants, respectively.

• Research Organization: Environmental Protection Agency, Research Triangle Park, NC (USA). Atmospheric Sciences Research Lab.
• OSTI ID: 6958416
• Report Number(s): PB-88-201215/XAB; EPA-600/J-88/007
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AEROSOLS
AIR POLLUTION MONITORING
CHEMICAL ANALYSIS
COLLOIDS
DISPERSIONS
EQUIPMENT
FEDERAL REGION III
NORTH AMERICA
PARTICLES
PARTICULATES
PENNSYLVANIA
POLLUTION SOURCES
SAMPLERS
SOLS
USA