Abstract：
:Representative PM2.5 and PM10 source emissions were sampled in Texas during the Big Bend Regional Aerosol Visibility and Observa (BRAVO) study. Chemical source profiles for elements, ions, and carbon fractions of 145 samples are reported for paved and unpaved road dust, soil dust, motor vehicle exhaust, vegetative burning, four coal-fired power stations, an oil refinery catalytic cracker, two cement kilns, and residential meat cooking. Several samples were taken from each emitter and source type, and these were averaged by source type, and in source subgroups based on commonality of chemical composition. The standard deviation represents the variability of the chemical mass fractions. BRAVO profiles differed in some respects from profiles measured elsewhere. High calcium abundances in geological dust, high selenium abundances in coal-fired power stations, and high antimony abundances in oil refinery catalytic cracker emissions were found. Abundances of eight thermally evolved carbon fractions [Atmos. Environ. 28 (15) (1994) 2493] differ among combustion sources, and a Monte Carlo simulation demonstrates that these differences are sufficient to differentiate among several carbon-emitters.
journal_name
Chemospherejournal_title
Chemosphereauthors
Chow JC,Watson JG,Kuhns H,Etyemezian V,Lowenthal DH,Crow D,Kohl SD,Engelbrecht JP,Green MCdoi
10.1016/j.chemosphere.2003.07.004subject
Has Abstractpub_date
2004-01-01 00:00:00pages
185-208issue
2eissn
0045-6535issn
1879-1298pii
S0045-6535(03)00780-Xjournal_volume
54pub_type
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