环境空气中PM2.5的分布特征及来源解析  

Distribution characterization and source apportionment of PM2. 5 in China

作　　者：陈璐 赵东风[1] 薛建良[1] 孙慧 甘为民 巫明娟 李石[1] 

机构地区：[1]中国石油大学(华东)化学工程学院,山东青岛266580 [2]青岛欧赛斯环境与安全技术有限责任公司,山东青岛266580 [3]中海油(青岛)重质油加工工程技术研究中心有限公司,山东青岛266555

出　　处：《现代化工》2013年第9期5-8,共4页Modern Chemical Industry

基　　金：中央高校基本科研业务费专项基金(13CX06055A)

摘　　要：我国大气颗粒物呈现复合型污染特征,细颗粒物PM2.5来源复杂。通过对我国大气细颗粒物PM2.5的时间、空间分布特征以及来源解析的相关研究进行总结,得出大气细颗粒物PM2.5的分布随时间、空间及气象条件变化的规律。各地的源解析结果显示,我国PM2.5主要来源有燃煤、机动车尾气、扬尘、二次粒子、生物质燃烧、有机物、海盐粒子等,且各来源的贡献率因所在功能区不同而异。同时,从化学组成、特定指标、化学-统计学等多角度梳理了确定PM2.5污染源头的分析手段,有助于更加有针对性地提出PM2.5的源头削减措施。The atmospheric particulate matter in China has formed with characteristic of compounding pollution.The fine particulate matter PM2.5 has complex sources.Through an integrated analysis on concentration characteristics and source apportionment results of PM2.5 in China,the regular pattern is found.The source apportionment results have shown that the main sources of PM2.5 in China are as follows：the burning of coal,the motor vehicle exhaust,dust,secondary particles,the burning of biomass,sea salt particles,etc.In addition,the analytical techniques for analyzing the sources of PM2.5 based on the chemical composition,particular indexes and the chemistry-statistics methods are summarized,which is helpful to propose more measures to reduce PM2.5 emission from the very beginning.

关 键 词：大气细颗粒物PM2 5 分布特征 源解析 

分 类 号：X131.1[环境科学与工程—环境科学]