重庆某发电厂煤中微量元素的初步研究

重庆市是一个以煤为主要能源的城市，煤在能源消耗中占的比例长期保持在2／3左右。煤在燃烧过程中会释放出有毒有害物质，对环境和人体健康造成危害。为了保护重庆市民的身体健康，制定更加科学的有毒有害物质污染控制对策，本文以某电厂用煤为研究对象，分析了24个煤样中Hg、As、Se、Pb、Cd、Zn、Ba、Co、Cr、Cu、Li、Ni、V、Zr等微量元素的含量水平。结果表明：Hg、As、Se、Cd和Li等元素的浓度克拉克值大于l，说明这些元素在煤中呈富集状态：其余元素的浓度克拉克值小于1，在煤中这些元素呈分散状态。该发电厂然煤中的Hg、As、Pb和Se的含量更高，而其余元素的含量则比北方煤中的低。

Primary Study on the Trace Elements in Coal from a Power Plant in Chongqing

As a municipality, coal consumption is over two thirds in the total energy demanding in Chongqing, Some materials generated in the combustion of coal are harmful to human and environment. In order to make more scientific decisions and protect the health of citizens in Chongqing, this paper reported some primary results of trace elements in 24 coal samplers obtained from one power plant in Chongqing,the results indicated that the Clarke values of Hg,As,Se,Cd and Li are over one, while the rest below one. Compared with the trace elements in coal from north part of China, the concentration of Hg,As,Pb and Se in coal in Chongqing are higher and the rest are lower.