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5. 太原市采暖季大气PM2.5化学组成特征及重污染成因分析

太原市采暖季大气PM2.5化学组成特征及重污染成因分析

来源 :第21届中国大气环境科学与技术大会暨中国环境科学学会大气环境分会2015年学术年会 | 被引量 : 0次 | 上传用户：flysiro

【摘 要】

：

在 2014 年12 月采集了太原市采暖季大气PM2.5 样品,分析了18 种元素组分、2 种碳质组分和9 种水溶性离子组分,得到了PM2.5 的化学组成特征,并对重污染天气的成因进行了深入分析.结果表明：碳质组分、水溶性离子组分、元素组分占PM2.5 总质量浓度的40.7％、40.3％、12.0％,OC、EC、SO42-是质量浓度最高的三个组分,三者之和占PM2.5质量浓度的54.2％,观测期间

【作 者】

：

张腾 温彦平 曹力媛 彭林 李颖慧 

【机 构】

：

华北电力大学环境与化学工程系北京 102206 太原市环境监测中心站太原 030024

【出 处】

：

第21届中国大气环境科学与技术大会暨中国环境科学学会大气环境分会2015年学术年会

【发表日期】

：

2015年5期

【关键词】

：

PM2.5 化学组成 重污染天气 

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论文部分内容阅读

　　在 2014 年12 月采集了太原市采暖季大气PM2.5 样品,分析了18 种元素组分、2 种碳质组分和9 种水溶性离子组分,得到了PM2.5 的化学组成特征,并对重污染天气的成因进行了深入分析.结果表明：碳质组分、水溶性离子组分、元素组分占PM2.5 总质量浓度的40.7％、40.3％、12.0％,OC、EC、SO42-是质量浓度最高的三个组分,三者之和占PM2.5质量浓度的54.2％,观测期间PM2.5 的平均化学组成如图1 所示.

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