北京地区大气中汞污染状况的初步调查  

THE PRELIMINARY INVESTIGATION OF GASEOUS MERCURY POLLUTION IN BEUING AREA

作　　者：陈乐恬[1] 刘俊华[1] 佟玉芹[1] 林玉环[1] 王文华[1] LiuS CarloyRJ 

机构地区：[1]中国科学院生态环境研究中心,北京100085 [2]美国Connecticut大学环境研究所

出　　处：《环境化学》2000年第4期357-361,共5页Environmental Chemistry

基　　金：国家科委攻关项目;批准号96-911-05-05;国家自然科学基金资助项目;批准号29877031.

摘　　要：用镀金细砂填充的石英采样管在采暖期和非采暖期于北京地区七个采样点收集空气中的气态汞.用二步汞齐化原子吸收法测定其浓度并与实时分析结果进行比较两种方法的结果都表明,采暖期北京地区大气中汞的浓度低于非采暖期大气中汞的浓度。Gaseous mercury from atmospheric environment was collected on gold coated sand quartz tubes at seven stations in Beijing area during heating time and unheating time. The concentrations of mercury were determined by using two stage gold amalgamation and atomic absorption mercury analyser. The comparison with near-real-time analysis was made. The data from two methods show that the mercury concentrations measured during heating time were lower than those measured during unheating time.The further research on other sources of mercury besides coal combustion in Beijing area will be needed.

关 键 词：气态汞 空气采样 北京 大气监测 

分 类 号：X51[环境科学与工程—环境工程]