北京市区及郊区大气中的汞沉降的估算  

The estimation of mercury deposition in Beijing

作　　者：刘俊华[1] 陈乐恬[1] 王文华[2] 申哲民[1] 彭安[1] 

机构地区：[1]中国科学院生态环境研究中心环境水化学国家重点实验室,北京100085 [2]上海交通大学环境学院,上海200240

出　　处：《环境科学学报》2001年第5期643-645,共3页Acta Scientiae Circumstantiae

基　　金：中国科学院重点基金 (K95 2 J1 2 0 5 );国家自然科学基金 (2 98770 31)资助

摘　　要：以Throughfall法估算出北京市 1996年大气汞干沉降率为 5 2 8.88μg·m2 ·a-1,以沉降速率估算出 1998年北京市汞的年沉降量为 6 87.5 μg·m-2 ·a-1.According to Hg concentration in rainfall and throughfall samples collected during 1994—1996 and Hg contents in atmosphere in 1998 in Beijing, the Hg deposition was estimated. The dry deposition in 1996 was estimated to be 528.9 ?μg/(m 2·a) in Beijing. The total Hg deposition was calculated to be 657.0?μg/(m 2·a) by adding the wet Hg deposition this year. A method with velocity and Hg contents was applied to estimated the Hg deposition to be 687.5?μg/(m2·a) in Beijing in 1998.

关 键 词：北京 汞 沉降 大气污染 沉降速率估算 

分 类 号：X831[环境科学与工程—环境工程] X51