焦化厂附近大气降尘量及降尘中金属元素的分析

Determination of Atmospheric Dust-fall and the Content of Metal Elements in Dust-fall Around Coking Plant

测定了某焦化厂周围的大气降尘及其中的Cd、As、Hg、Cu、Pb、Zn、Ni、K、Ca、Mg、Mn、Fe等金属元素的含量。结果表明,该焦化厂周围降尘中重金属污染物的含量远高于对照区和其它城市大气降尘中金属含量,焦化厂对周围大气降尘中的金属含量贡献较大。

The content of atmospheric dust-fall and metal elements such as Cd, As, Hg, Cu, Pb, Zn, Ni, Mn, Fe, K, Ca and Mg etc in dust-fall around a coking plant was determined. The results showed that the content of dust-fall and the heavy metal pollutants in dust-fall around the coking plant are much higher than those in a background area and other cities. The coking plant contributes a lot of the dust-fall and the heavy metal poilutants to its ambient environment.