化石燃料燃烧产物对大气环境质量的影响及研究现状

Effects of Fossil Fuel Combustion Outcome on Air Environmental Quality and Study Situation

大气中的无机污染物和有机污染物绝大部分来源于化石燃料的燃烧 ,本文列举了化石燃料燃烧产生的无机污染物及其毒性、有机污染物种类及其毒性 .其中的NO2 、SO2 、H2 S、CO、Pb、Hg等无机污染对人类健康影响极大 ,目前引起人们普遍关注的是致癌多环芳烃和含N、S、O杂环有机污染物 .文中对我国主要城市大气中由化石燃料产生的有机污染物浓度进行了对比研究 ,并主要对北京地区大气中有机污染物的总体特征进行了分析 ,检出了 80多种多环芳烃和杂环有机污染物 ,其中一部分是具有“三致”作用的多环芳烃 .

The nonorganic and organic pollutants in air are mainly from combustion of fossil fuel.This paper enumerate nonorganic, organic pollutants and their toxicity produced by fossil fuel. NO 2、SO 2、H 2S、CO、Pb、Hg nonorganic pollutions impact heavily human health. Carcinogenic PAHs and organic heterocyclic N、S、O compounds are paid close attention. We study and contrast the organic pollutants concentrations in aerosol of several main cities in China, and study stressly general characteristics of organic pollutants in aerosol of Beijing district, More than 80 kinds of PAHs are detected in the aerosol of Beijing area, among which the unsubstituted PAHs are the principle components with proportion of about 60%. About 90% of unsubstituted PAHs belongs to the priority pollutants proposed by EPA,such as pyrene, fluoranthene, benzo[a] pyrene, benzo\perylene etc. Among these PAHs, benzo[a] pyrene is heavy carcinogenic, while others are carcinogenic or suspiciously carcinogenic pollutants