Air quality impacts of power plant emissions in Beijing.
The CALMET/CALPUFF modeling system was applied to estimate the air quality impacts of power plants in 2000 and 2008 in Beijing, and the intake fractions (IF) were calculated to see the public health risks posed. Results show that in 2000 the high emission contribution induced a relatively small contribution to average ambient concentration and a significant impact on the urban area (9.52 microg/m(3) of SO(2) and 5.29 microg/m(3) of NO(x)). The IF of SO(2), NO(x) and PM(10) are 7.4 x 10(-6), 7.4 x 10(-6) and 8.7 x 10(-5), respectively. Control measures such as fuel substitution, flue gas desulfurization, dust control improvement and flue gas denitration planned before 2008 will greatly mitigate the SO(2) and PM(10) pollution, especially alleviating the pressure on the urban area to reach the National Ambient Air Quality Standard (NAAQS). NO(x) pollution will be mitigated with 34% decrease in concentration but further controls are still needed.
Hao
Jiming
J
Department of Environmental Science and Engineering, Tsinghua University, Beijing, PR China. hjm-den@mail.tsinghua.edu.cn
Wang
Litao
L
Shen
Minjia
M
Li
Lin
L
Hu
Jingnan
J
D000393:Air Pollutants / Q000633:toxicity; D000397:Air Pollution / Q000009:adverse effects* / Q000517:prevention & control; D002681:China; D003031:Coal / Q000633:toxicity; D004784:Environmental Monitoring / Q000379:methods; D005579:Fossil Fuels / Q000633:toxicity; D008962:Models, Theoretical; D009589:Nitrogen Oxides / Q000633:toxicity; D052638:Particulate Matter / Q000633:toxicity; D011210:Power Plants; D011634:Public Health; D018570:Risk Assessment / Q000379:methods; D013458:Sulfur Dioxide / Q000633:toxicity; D014504:Urban Health
D000393:Air Pollutants; D003031:Coal; D005579:Fossil Fuels; D009589:Nitrogen Oxides; D052638:Particulate Matter; D013458:Sulfur Dioxide