Development and evaluation of composite-receptor methods

Technical Report · Fri Jul 01 04:00:00 EDT 1988

OSTI ID:6770869

Dzubay, T G

A composite-receptor method for PM-10 apportionment was evaluated to determine the stability of its solutions and to devise cost-effective measurement strategies. Aerosol samples used in the evaluation were collected during summer, 1982, by dichotomous samplers at three sites in the vicinity of Philadelphia, PA. The composite receptor method consisted of a wind-trajectory method, chemical mass balance (CMB), and multiple linear regression (MLR). Measured lead minus a CMB-derived correction for other sources was used as an independent variable in MLR, and MLR results for the Pb abundance in vehicle exhaust agreed with predictions of a model for vehicle emission factors. In resolving PM-10 into 11 components, scanning electron microscopy was essential for coal-fly ash and botanical matter, x-ray fluorescence (XRF) was needed for the sulfur-component and vehicle exhaust, and instrumental neutron-activation analysis (INAA) was essential for fluidized catalytic crackers at refineries.

• Research Organization: Environmental Protection Agency, Research Triangle Park, NC (USA). Atmospheric Sciences Research Lab.
• OSTI ID: 6770869
• Report Number(s): PB-88-234067/XAB; EPA-600/3-88/026
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AEROSOL WASTES
AEROSOLS
AIR POLLUTION
ASHES
COLLOIDS
DISPERSIONS
ELEMENTS
EMISSION
EXHAUST GASES
FLUIDS
FLY ASH
GASEOUS WASTES
GASES
LEAD
MASS BALANCE
MATHEMATICS
MEASURING METHODS
METALS
PARTICLES
PARTICULATES
POLLUTION
REGRESSION ANALYSIS
RESIDUES
SAMPLING
SOLS
STATISTICS
TRAJECTORIES
WASTES
WIND