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Rapid Increase in Cement-Related Mercury Emissions and Deposition in China during 2005-2015

机译：2005 - 2015年中国水泥相关汞排放和沉积迅速增加

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摘要

The cement industry has become the largest mercury (Hg) emission source in China. Better understanding Hg emission and deposition characteristics and drivers of Hg emission changes can increase the awareness of related risks and support effective policy making. The results show that due to the substantial increase in the use of new suspension preheater and precalciner (NSP) technology in China, an approximate twofold increase from 80.0 to 144.0 Mg year~(-1) was observed for the cement-related Hg emissions during 2005-2015, which has resulted in a considerable increase in atmospheric deposition over terrestrial China from 37.9 to 75.9 Mg year~(-1). Compared to the great majority of emission sectors, the same increase in Hg emissions from cement production can cause more deposition due to the large share of highly water-soluble divalent Hg in the sector. Each 1% increase in the share of divalent Hg can result in an increase of 0.37 Mg year~(-1) in deposition over terrestrial China. Technical improvement and diversification of cement products are two major driving forces offsetting the economy-induced growth in cement-related Hg emissions during 2005-2015. Measures aimed at reducing the Hg emission intensity against the further increase in the use of NSP technology and avoiding overcapacity against the stimulation of real estate and increasing cement demands are urgendy needed for the cement industry in China.
机译：水泥行业已成为中国最大的水星（HG）排放源。更好地理解HG排放和沉积特征和汞排放变化的驱动因素可以提高相关风险的认识，并支持有效的政策制定。结果表明，由于新的悬浮炉和前进者（NSP）技术在中国使用的大量增加，对水泥相关的HG排放期间，观察到从80.0至144.0毫克〜（-1）的大致两倍增加2005 - 2015年，这导致陆地沉积在陆地沉积中，从37.9到75.9毫克年度〜（-1）。与大多数排放部门相比，由于该部门中高水溶性二价HG的大量份额，水泥产生的HG排放量相同的沉积率可能导致更多沉积。二价HG份额的每次增加1％的份额可能导致陆地中国沉积增加0.37毫克〜（-1）。水泥产品的技术改进和多样化是两种主要推动力，抵消了2005 - 2015年在水泥相关的HG排放中的经济诱导的生长。迫切需要减少利用NSP技术的进一步增加，避免使用NSP技术的进一步增加，避免过度紧张的措施，并在中国的水泥行业所需的诉讼需要急需。

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  • 来源
    《Environmental Science & Technology》 |2020年第22期|14204-14214|共11页
  • 作者

    Long Chen; Sai Liang; Haoran Zhang; Xingrui Cai; Yuanchen Chen; Maodian Liu; Huiming Lin; Yumeng Li; Jianchuan Qi; Yindong Tong; Wei Zhang; Xuejun Wang; Jiong Shu;

  • 作者单位

    Key Laboratory of Geographic Information Science (Ministry of Education) School of Geographic Sciences East China Normal University Shanghai 200241 China;

    Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education Institute of Environmental and Ecological Engineering Guangdong University of Technology Guangzhou Guangdong 510006 China;

    Ministry of Education Laboratory of Earth Surface Process College of Urban and Environmental Sciences Peking University Beijing 100871 China;

    Ministry of Education Laboratory of Earth Surface Process College of Urban and Environmental Sciences Peking University Beijing 100871 China;

    Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province College of Environment Research Center of Environmental Science Zhejiang University of Technology Hangzhou 310032 China;

    Ministry of Education Laboratory of Earth Surface Process College of Urban and Environmental Sciences Peking University Beijing 100871 China;

    Ministry of Education Laboratory of Earth Surface Process College of Urban and Environmental Sciences Peking University Beijing 100871 China;

    State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Beijing Normal University Beijing 100875 China;

    Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education Institute of Environmental and Ecological Engineering Guangdong University of Technology Guangzhou Guangdong 510006 China;

    School of Environmental Science and Engineering Tianjin University Tianjin 300072 China;

    School of Environment and Natural Resources Renmin University of China Beijing 100872 China;

    Ministry of Education Laboratory of Earth Surface Process College of Urban and Environmental Sciences Peking University Beijing 100871 China;

    Key Laboratory of Geographic Information Science (Ministry of Education) School of Geographic Sciences East China Normal University Shanghai 200241 China;

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