Atmospheric Emission Inventory of Hazardous Trace Elements from China's Coal-Fired Power Plants-Temporal Trends and Spatial Variation Characteristics
Atmospheric Emission Inventory of Hazardous Trace Elements from China's Coal-Fired Power Plants-Temporal Trends and Spatial Variation Characteristics
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中国燃煤电厂大气有害微量元素排放清单——时间趋势与空间变化特征
DOI：
10.1021/es404730j
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发表时间：
2014
影响因子：
11.4
通讯作者：
Hua Shenbing
中科院分区：
文献类型：
--
作者：
Tian Hezhong;Liu Kaiyun;Zhou Junrui;Lu Long;Hao Jiming;Qiu Peipei;Gao Jiajia;Zhu Chuanyong;Wang Kun;Hua Shenbing
燃煤电厂是人类排放的各种有害微量元素（HTE）的重要来源，大量的排放会造成广泛的扩散和长距离的迁移。为了解我国燃煤电厂排放的各类HTE的时间变化趋势和空间变化特征，建立了2000-2010年我国燃煤电厂HTE（包括Hg、As、Se、Pb、Cd、Cr、Ni和Sb）多年综合排放清单。由于传统颗粒物/二氧化硫/氮氧化物（PM/SO2/NOx）控制装置的协同效应，这8种有毒元素的排放量自2006年达到峰值以来逐渐下降。汞、砷、硒、铅、镉、铬、镍和锑的总排放量很大，估计2010年分别为118.54、335.45、459.4、705.45、13.34、505.03、446.42和82.33吨。山东、江苏、山西、河北始终排在排放量最高的前十个省份之列。此外，通过情景分析预测了2015年和2020年的未来排放量。因此，迫切需要先进的技术和综合管理策略来控制热膨胀效应。
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.