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Position: Home > Articles > Distribution and Accumulation of Hg in Soils Around Coal-fired Power Plants: A Review Soils 2016 (3) 419-428

燃煤电厂周边土壤中汞的分布和累积研究进展

作  者:
司徒高华;王飞儿;何云峰;俞洁;王昊
单  位:
浙江省环境监测中心;浙江大学;浙江大学环境工程系;浙江大学环境与资源学院浙江省环境监测中心
关键词:
汞;燃煤电厂;干湿沉降;分布;累积
摘  要:
汞(Hg)是唯一以气态形式存在于大气环境中的有毒重金属污染物。燃煤电厂作为最重要的人为Hg排放源之一,其释放的Hg可随大气环流运输和转化,并通过干湿沉降进入到陆地和海洋生态系统,造成局域、区域和全球范围内的Hg污染。研究燃煤电厂排放的Hg在大气中的沉降规律及其在土壤中的累积特点,对于深入了解燃煤电厂Hg排放的生态影响具有重要意义。本文综述了燃煤电厂Hg排放污染土壤的途径,分析了电厂周围土壤Hg的浓度水平和空间分布特点,总结了影响土壤Hg分布的主要因素,并对将来的研究方向提出了展望。
译  名:
Distribution and Accumulation of Hg in Soils Around Coal-fired Power Plants: A Review
作  者:
SITU Gaohua;WANG Feier;HE Yunfeng;YU Jie;WANG Hao;CAI Wu;College of Environmental & Resource Sciences, Zhejiang University;Zhejiang Province Environmental Monitoring Center;
关键词:
Hg;;Coal-fired power plants(CFPPs);;Dry/wet deposition;;Distribution;;Accumulation
摘  要:
Mercury(Hg) is recognized as the only toxic heavy metal pollutant existing in gaseous form in the atmosphere. As one of the most remarkable anthropogenic Hg sources, the coal-fired power plants(CFPPs) contribute significant Hg emissions to the atmosphere which can transport and transform in the atmospheric circulation, and can move from the atmosphere via dry/wet deposition to the terrestrial and marine ecosystems, resulting in Hg pollution on a local, regional and global scale. Research on the deposition of Hg in the atmosphere emitted from CFPPs, and its accumulation characteristics in the soils, is critically important for further understanding the ecological impact of Hg emissions. This paper reviewed the pathways of Hg from CFPPs to soils, analyzed the level and spatial distribution of Hg in the soils around the CFPPs, and summarized the major factors affecting the distribution of Hg in soils. Finally, the future research directions were also proposed.

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