PM4 Crystalline Silica Emission Factors and Ambient Concentrations at Aggregate-Producing Sources in California
نویسندگان
چکیده
منابع مشابه
Ambient endotoxin concentrations in PM10 from Southern California.
Concentrations of endotoxin in urban air pollution have not previously been extensively characterized. We measured 24-hr levels of PM10 (particulate matter < 10 microm in aerodynamic diameter) and the associated endotoxin component once every 6 weeks for 1 year in 13 communities in Southern California. All the samples collected had detectable PM10 and endotoxin levels. The geometric mean PM10 w...
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We have derived ambient black carbon (BC) concentrations and estimated emission factors for on-road diesel vehicles from archived coefficient of haze (COH) data that was routinely collected beginning in 1967 at 11 locations in the San Francisco Bay Area. COH values are a measure of the attenuation of light by particles collected on a white filter, and available data indicate they are proportion...
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ژورنال
عنوان ژورنال: Journal of the Air & Waste Management Association
سال: 2009
ISSN: 1096-2247,2162-2906
DOI: 10.3155/1047-3289.59.11.1287