title: Atmospheric emission inventory of hazardous trace elements from China's coal-fired power plants--temporal trends and spatial variation characteristics.
abstract: Coal-fired power plants are the important sources of anthropogenic atmospheric releases of various hazardous trace elements (HTE) because a large quantity of emissions can cause wide dispersion and possible long-distance transportation. To obtain the temporal trends and spatial variation characteristics of various HTE discharged from coal-fired power plants of China, a multiple-year comprehensive emission inventory of HTE including Hg, As, Se, Pb, Cd, Cr, Ni, and Sb has been established for the period 2000-2010. Thanks to the cobenefit removal effects of conventional particulate matter/sulfur dioxide/nitrogen oxides (PM/SO2/NOx) control devices, emissions of these 8 toxic elements have shown a gradual decline since the peak in 2006. The total emissions of Hg, As, Se, Pb, Cd, Cr, Ni, and Sb are substantial and are estimated at about 118.54, 335.45, 459.4, 705.45, 13.34, 505.03, 446.42, and 82.33 tons (t), respectively, in 2010. Shandong, Jiangsu, Shanxi, and Hebei always rank among the top ten provinces with the highest emissions. Further, future emissions for 2015 and 2020 are projected with scenario analysis. Advanced technologies and integrated management strategies to control HTE are in great need.
authors.affiliation: State Key Joint Laboratory of Environmental Simulation & Pollution Control, School of Environment, Beijing Normal University , Beijing 100875, China.
authors.forename: Hezhong
authors.initials: H
authors.lastname: Tian
authors.forename: Kaiyun
authors.initials: K
authors.lastname: Liu
authors.forename: Junrui
authors.initials: J
authors.lastname: Zhou
authors.forename: Long
authors.initials: L
authors.lastname: Lu
authors.forename: Jiming
authors.initials: J
authors.lastname: Hao
authors.forename: Peipei
authors.initials: P
authors.lastname: Qiu
authors.forename: Jiajia
authors.initials: J
authors.lastname: Gao
authors.forename: Chuanyong
authors.initials: C
authors.lastname: Zhu
authors.forename: Kun
authors.initials: K
authors.lastname: Wang
authors.forename: Shenbing
authors.initials: S
authors.lastname: Hua
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D000397:Air Pollution / Q000032:analysis* / Q000517:prevention & control; D002681:China; D003031:Coal; D004784:Environmental Monitoring; D019216:Metals, Heavy / Q000032:analysis*; D010087:Oxides / Q000032:analysis; D052638:Particulate Matter / Q000032:analysis; D011210:Power Plants; D062211:Spatio-Temporal Analysis
chemical_list: D000393:Air Pollutants; D003031:Coal; D019216:Metals, Heavy; D010087:Oxides; D052638:Particulate Matter