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Sci Total Environ. 1984 Jan 13;32(2):133-45.

Particulate carbon in Los Angeles air.

Abstract

A selective combustion method has been applied to the determination of total, organic and elemental particulate carbon in Los Angeles air. Carbon concentrations (10-56 micrograms m-3) and their temporal variations are presented for multiday smog episodes. Organic carbon/elemental carbon concentration ratios ranged from approximately 3 during the winter months to approximately 10 during the smog season. Photochemical production of particulate organic carbon is estimated to be approximately 76-118 X 10(3) kg/day, as compared to approximately 31 X 10(3) kg/day from direct emissions. This estimate is also consistent with gas-to-particle conversion considerations for precursor hydrocarbons.

PMID:
6701508
[Indexed for MEDLINE]
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