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《Acta Scicentiarum Naturalum Universitis Pekinesis》 2003-02
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A Case Study of Ozone Source Apportionment in Beijing

WANG Xuesong LI Jinlong (State Key Joint Laboratory of Environmental Simulation and Pollution Control,College of Environmental Sciences,Peking University,Beijing,100871)  
The Comprehensive Air Quality Model with extensions (CAMx),a 3-D Eulerian regional air quality model,was used to simulate the tropospheric photochemical pollution in Beijing and Tianjin areas;Ozone Source Apportionment Technology (OSAT) was applied to track the contributions of multiple source areas and source categories to ozone formation in Beijing.The results showed that the source emissions in the urban and suburban areas of Beijing contributed much to ozone formation in local and downwind areas;among all the source categories,mobile source contributed most to ozone formation,followed by the pollutants from oil products and organic solvents and those emitted by industrial source,while biogenic source and other anthropogenic area source contributed less in Beijing.The results also showed that the ozone episode in Beijing area was regional in extent,meteorological fields and pollutant emissions were important impact factors to ozone formation and distribution.
【Fund】: 国家科技部专项课题 (北京市大气污染的成因和来源分析 )资助项目
【CateGory Index】: X831
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