Authors
Lyle R Chinkin, Dana L Coe, Tami H Funk, Hilary R Hafner, Paul T Roberts, Patrick A Ryan, Douglas R Lawson
Publication date
2003/7/1
Journal
Journal of the Air & Waste Management Association
Volume
53
Issue
7
Pages
829-843
Publisher
Taylor & Francis Group
Description
Ambient O3 concentrations in California’s South Coast Air Basin (SoCAB) can be as much as 55% higher on weekends than on weekdays under comparable meteorological conditions. This is paradoxical because emissions of O3 precursors (hydrocarbons, CO, and nitrogen oxides [NOx]) are lower on weekends. Day-of-week emissions activity data were collected and analyzed to investigate the hypothesized causes of the “weekend O3 effect.” Emission activity data were collected for various mobile, area, and point sources throughout the SoCAB, including on-road vehicles, lawn and garden equipment, barbecues, fireplaces, solvent use, and point sources with continuous emission monitoring data. The results of this study indicate significant differences between weekday and weekend emission activity patterns and emissions. Their combined effect results in a 12–18% decrease in reactive organic gases …
Total citations
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Scholar articles
LR Chinkin, DL Coe, TH Funk, HR Hafner, PT Roberts… - Journal of the Air & Waste Management Association, 2003