内蒙古乌达工业园地表汞通量研究  

Study on surface mercury flux in Wuda Industrial Park in Inner Mongolia

作　　者：钱雅慧 李春辉[1,2] 梁汉东[1,2] 梁明[1] Qian Yahui;Li Chunhui;Liang Handong;Liang Ming(State Key Laboratory of Coal Resources and Safe Mining,Beijing 100083,China;College of Geoscience and Surveying Engineering,China University of Mining and Technology,Beijing 100083,China)

机构地区：[1]中国矿业大学(北京)煤炭资源与安全开采国家重点实验室,北京100083 [2]中国矿业大学(北京)地球科学与测绘工程学院,北京100083

出　　处：《能源与环保》2019年第10期91-98,共8页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

基　　金：煤炭资源与安全开采国家重点实验室自主研究课题(SKLCRSM17ZZ01);国家自然科学基金(41371449,41772157)

摘　　要：污染区域地表汞交换通量对大气汞的贡献已成为环境领域研究的热点。采用动力学通量箱与RA-915+测汞仪联用,对内蒙古乌达工业园4个不同土地利用类型及背景区的地表汞交换通量进行了测量,并测试了各采样点落尘、地表土汞含量以及可能对地表汞交换通量有影响作用的自然因素数据,如光照强度、地表温度、大气温度等。结果表明:乌达工业园火碱厂、居民区、燃煤电厂和水泥厂地表汞通量均值分别为77,80,74,39ng/(m^2·h),工业园不同用途地表汞交换通量值具有明显的非均一性,且明显高于区域背景值(19ng/(m^2·h))。相比地表土,地表落尘对地表汞通量的贡献更为显著。光照强度和地表温度对地表汞释放具有重要的影响作用。The contribution of surface mercury exchange flux to the atmosphere in polluted areas has become a hot topic in the field of environmental research.In this paper,the kinetic flux box was used in combination with the RA-915+ mercury analyzer to measure the surface mercury exchange fluxes of four different land use types and background area in Wuda Industrial Park in Inner Mongolia,and tested the dust at each sampling point,the surface soil mercury content and natural factors that may affect the surface mercury exchange flux,such as light intensity,surface temperature,atmospheric temperature,etc.The results showed that the mean values of surface mercury flux in coal-fired power plants,residential areas,metallurgical plants and cement plants in Wuda Industrial Park were 77,80,74,39 ng/(m ^2 · h).The surface mercury exchange flux values of different used in industrial parks had obvious heterogeneity and significantly higher than the regional background value(19 ng/(m ^2 · h)).Compared with topsoil,the contribution of surface dust to surface mercury flux was more significant.Light intensity and surface temperature had an important influence on surface mercury release.

关 键 词：乌达工业园 汞通量 落尘汞 地表土汞 相关性分析 

分 类 号：X53[环境科学与工程—环境工程] X51