安徽农业科学2011，Vol.39Issue(21)：12829-12831,3.
大气PM2.5中重金属在模拟酸雨中的释放特征
Releasing Characteristics of PM2.5-bound Heavy Metals in the Simulated Acid Rain
摘要
Abstract
Through simulated acid rain test, it draw the conclusion that PM2; -bound heavy metals Cu, Pb, Zn, Cd, Ni and Cr have varying degrees of dissolution in the simulated acid rain. The dissolved percentages of heavy metals increased with the decreases of pH values, suggesting that the increasing acidity can accelerate the release of heavy metals in PM25. Its also indicated that acid rain will increase the mobility and pollution of PM25 -bound heavy metals in the environment. The dissolved percentages of heavy metals in spring of 2007 are higher than that in autumn of 2006 at the same pH value of simulated acid rain, which maybe due to the higher percentage of unstable fraction metals in the spring of 2007. It indicates that unstable fraction metals absorbed in participate matter are easier to release in the acidic condition, and acid rain will increase the mobility and pollution capacity of heavy metals in atmospheric particulates in the environment.关键词
PM25/重金属/模拟酸雨Key words
PM2 5/ Heavy metal/ Simulated acid rain分类
资源环境引用本文复制引用
冯茜丹,党志,童英林,刘洁萍..大气PM2.5中重金属在模拟酸雨中的释放特征[J].安徽农业科学,2011,39(21):12829-12831,3.基金项目
仲恺农业工程学院科研基金项目(G3100033). （G3100033）
