Anthropogenic Atmospheric Emissions of Antimony and Its Spatial Distribution Characteristics in China
Anthropogenic Atmospheric Emissions of Antimony and Its Spatial Distribution Characteristics in China
复制标题
中国人为大气锑排放量及其空间分布特征.
DOI：
10.1021/es2041465
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发表时间：
2012-04-03
影响因子：
11.4
通讯作者：
Hao, Jiming
中科院分区：
文献类型：
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作者：
Tian, Hezhong;Zhao, Dan;Hao, Jiming
编制了2005-2009年中国大气锑人为排放综合清单。首次对所有主要人为源的排放量进行了估计。我们估计2009年全国锑的排放量为818吨，其中燃煤排放量最大，占总量的61.8%，而有色金属冶炼排放量占26.7%。贵州省的排放量最大，主要是由于小规模燃烧高锑煤而没有排放控制装置，湖南省则是大规模冶炼。此外，2188个大型点源和面源的Sb排放分布在基于纬度/经度的网格内，分辨率为30 min × 30 min，其中Sb排放主要集中在人口密集和工业化程度高的中国西南部，中东部地区和沿海地区。通过蒙特卡罗模拟，我们自下而上库存的不确定性被量化为-11%至40%。我们建议对中国的燃煤炉和冶炼厂进行持续的现场测试，以提高这些估计的准确性。
An integrated inventory of atmospheric antimony (Sb) emissions from anthropogenic activities in China is compiled for the years 2005-2009. Emissions are estimated for all major anthropogenic sources for the first time. We estimate that the national emissions of antimony are 818 metric tons (t) in 2009, with the largest contribution from coal combustion at 61.8% of the total, while 26.7% of Sb is emitted from nonferrous metals smelting. Emissions are heaviest in Guizhou province, mainly due to small-scale combustion of high-Sb coal without emission control devices, and in Hunan province, where extensive smelting occurs. Furthermore, Sb emissions from 2188 large point sources and area sources are distributed within latitude/longitude-based grids with a resolution of 30 min × 30 min where Sb emissions are largely concentrated in highly populated and industrialized southwestern China, the east central region, and coastal areas. The uncertainties in our bottom-up inventory are quantified as -11% to 40% by Monte Carlo simulation. We recommend continuous field testing of coal combustors and smelters in China to improve the accuracy of these estimates.