甲基汞的大气-水-土壤界面交换通量  

Fluxes of Methylmercury Exchange at the Air Water Soil Interface

作　　者：李华斌[1] 王文华[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

出　　处：《环境科学》2000年第1期81-83,共3页Environmental Science

基　　金：国家"九五"重点科技攻关项目;中国科学院重点课题

摘　　要：通过模拟实验和野外实测，对甲基汞在大气－水和大气－土壤的界面交换进行了初步研究．结果表明，甲基汞释放通量与水中的甲基汞浓度有关，水－气体系中甲基汞释放通量大于水－土－气体系中甲基汞释放通量；甲基汞在大气－土壤界面的释放通量为０．２１～３．０９ｎｇ·ｍ － ２·ｈ－ １；在大气－水界面的释放通量为０．１４～０．７９ｎｇ·ｍ － ２·ｈ－ １．The surface exchanges of methylmercury at air soil and air water were studied by using simulated experiments and field measurements.Results showed that the flux of methylmercury at air water was related to concentration of methylmercury in water,and the flux of methylmercury at air water was higher than that of air water soil, and the fluxes of methylmercury at air soil and air water were 0.21～3.09ng·m -2 ·h -1 and 0.14～0.79 ng·m -2 ·h -1 ,respectively.

关 键 词：甲基汞 界面交换 释放通量 水 土 气 

分 类 号：X132[环境科学与工程—环境科学] X83