Socioeconomic Drivers of Mercury Emissions in China from 1992 to 2007
Socioeconomic Drivers of Mercury Emissions in China from 1992 to 2007
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DOI：
10.1021/es303728d
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发表时间：
2013-04-02
影响因子：
11.4
通讯作者：
Zhang, Tianzhu
中科院分区：
文献类型：
--
作者：
Liang, Sai;Xu, Ming;Zhang, Tianzhu
1992-2007年间，中国的汞排放量增加了164%。虽然主要的汞生产者是能源燃烧和有色金属部门，但人们对推动排放增长的社会经济因素知之甚少。在本文中，我们研究了潜在的驱动因素及其对汞排放变化的贡献。结果表明，人均国内生产总值和国内生产总值构成的变化导致了排放量的增加，这抵消了技术引起的汞排放强度下降和最终需求组合变化所带来的排放量减少。特别是，最终需求组合的变化导致汞排放量在1992年至2002年期间减少，而在2002年至2007年期间增加。固定资本的形成是汞排放量增加的主要驱动因素，其次是城市人口和净出口的增加。对中国汞排放增加的社会经济驱动因素进行系统的审查，对于指导政策制定和技术发展目标，控制排放至关重要。
Mercury emissions in China have increased by 164% during 1992-2007. While major mercury producers were among energy combustion and nonferrous metal sectors, little is known for the socioeconomic factors driving the growth of emissions. In this paper we examine the underlying drivers and their contributions to the change of mercury emissions. Results show that changes in per capita GDP and GDP composition led to increased emissions which offset the reduction of emissions made possible by technology-induced decrease of mercury emissions intensity and changes in final demand mix. In particular, changes in final demand mix caused decreasing mercury emissions from 1992 to 2002 and increasing emissions from 2002 to 2007. Formation of fixed capital was the dominant driver behind the increase of mercury emissions, followed by the increasing urban population and net exports. This systems-based examination of socioeconomic drivers for China's mercury emission increase is critical for emission control by guiding policy-making and targets of technology development.