A high-resolution emission inventory of anthropogenic trace elements in Beijing-Tianjin-Hebei (BTH) region of China
A high-resolution emission inventory of anthropogenic trace elements in Beijing-Tianjin-Hebei (BTH) region of China
复制标题
中国京津冀（BTH）地区人为微量元素高分辨率排放清单
DOI：
10.1016/j.atmosenv.2018.08.035
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发表时间：
2018
影响因子：
5
通讯作者：
Liu Huanjia
中科院分区：
文献类型：
--
作者：
Zhu Chuanyong;Tian Hezhong;Hao Yan;Gao Jiajia;Hao Jiming;Wang Yong;Hua Shenbing;Wang Kun;Liu Huanjia
采用S型曲线确定的年际动态排放因子，编制了1980-2012年京津冀地区Hg、As、Se、Pb、Cd、Cr、Ni、Sb、Mn、Co、Cu和Zn 12种有害微量元素的人为排放清单。研究结果表明，12家高新技术企业的BTH区域总排放量从1980年的2190.0吨迅速增加到2012年的8704.6吨。工业锅炉的燃煤、黑色金属冶炼、玻璃生产和制动器磨损被确定为区域HTE排放的主要来源。北京市是全国锑排放量最大的城市，其锑排放量约占全区的20.0%。然而，对于其他11个HTE的排放，唐山是最高的排放城市，约占BTH总量的15.3-35.9%。HTE排放强度峰值（每平方公里排放量）主要分布在BTH区域中部和东南部的网格单元，尤其是城市和城乡交界区。总体而言，BTH地区HTE排放的月变化具有季节性的峰谷特征。新开发的库存的总体不确定性估计为-35.7%至36.4%。最后提出了高新技术企业减排的综合对策。
An inventory of anthropogenic emissions of twelve hazardous trace elements (HTEs): Hg, As, Se, Pb, Cd, Cr, Ni, Sb, Mn, Co, Cu and Zn, in the Beijing-Tianjin-Hebei (BTH) region of China is developed for 1980–2012 by using inter-annual dynamic emission factors, which are determined with S-shaped curves. Our results indicate that the BTH regional total emissions of twelve HTEs have rapidly increased from 2190.0 tons in 1980 to 8704.6 tons in 2012. Coal combustion by industrial boilers, ferrous metal smelting, glass production and brake wear are identified to be the primary sources of regional HTE emissions. Beijing is the largest Sb emitting city with about 20.0% of regional total emission. However, for other eleven HTE emissions, Tangshan represents as the highest emitting city, accounting for about 15.3–35.9% of the BTH totals. The peak HTE emission intensities (emissions per square kilometer) are mainly distributed over the grid cells of central and southeastern of the BTH region, especially for the urban and rural-urban border zones of cities. Generally, monthly variations of HTE emissions in the BTH region exhibit seasonal peak to valley characteristics. The overall uncertainties of the newly developed inventory are estimated to be from −35.7% to 36.4%. Finally, integrated countermeasures for emission reduction of HTEs are proposed.