Impacts assessment of steel plants on air quality over Beijing-Tianjin-Hebei area
BO Xin1,2, XU Jun3, Du Xiao-hui3, GUO Qian-Qian2, ZHEN Rui-Qing4, TIAN Jun5, CAI Bo-Feng6, WANG Long-Fei2, MA Fang-Shu1, ZHOU Bei-Hai1
1. School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China;
2. The Appraisal Center for Environment and Engineering, Ministry of Environmental Protection, Beijing 100012, China;
3. Chinese Research Academy of Environmental Sciences, Beijing 100012, China;
4. CERI eco Technology Co., LTD, Beijing 100053, China;
5. Academy of Environmental Planning and Design, Nanjing University, Nanjing 210093, China;
6. Chinese Academy for Environmental Planning, Beijing 100012, China
Regional air quality model CAMx was used to project the air pollution contribution from steel plants to the Beijing-Tianjin-Hebei area under different scenarios, based on emission inventory of steel industry of the region and the eliminating list in the reduced capacity scenario. The results implied that in current situation, the steel plants could contribute to as high as 14.0%, 28.7% and 43.2% in winter, and 13.1%, 28.7% and 53.4% in summer to regional concentration of PM2.5, SO2 and NOx, respectively. Compared with 2012, under the scenario of resolving production overcapacity, the emissions of SO2, NOx, TSP and PM2.5from steel plants would decrease by 10.75%, 10.65%, 9.75%, and 9.75% respectively, and the number of emission sources decline by 11.74%. The contribution to the regional concentration of PM2.5, SO2 and NOx from steel plants would decrease by 1.4%, 2.5% and 3.1% in winter, and 0.9%, 2.0% and 3.5% in summer respectively.
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