期刊论文

Liu, W.

中文

环境科学学报

0253-2468

2013

33

1

189-200

10.13671/j.hjkxxb.2013.01.029

上海市科委基础研究重点项目

本校为其他机构

利用STAPLEX六级采样器(7.20μm)结合美国DRI碳分析仪分析了上海市嘉定区2008年4月至2010年10月大气颗粒物中EC和OC的含量和粒径分布,用EC示踪法估算POC和SOC的含量及粒径分布,并结合颗粒物中水溶性钾定量分析了上海市嘉定区大气颗粒物中EC和OC来自生物质燃烧排放的分担率.结果显示,上海市嘉定区大气颗粒物中EC与OC的含量分别为(3.54±1.46)μg·m~(-3)和(19.35±9.38)μg·m~(-3),占颗粒物质量的2.8%±1.1%和14.8%±4.0%.嘉定区PM_(3.0)中的OC与北京、杭州和武汉等城市的夏季以及珠江三角洲和上海市市区PM_(2.5)中的OC相当,而EC含量偏小,反映了嘉定区EC受机动车尾气排放影响小.上海市嘉定区大气...

In present study the atmospheric particulate samples, which were collected from April 2008 to October 2010 at Jiading District, Shanghai using STAPLEX pumping system of a six-stage cascade impactor (size range: 7.20 μm), were completely investigated. Organic carbon (OC) and Elemental carbon (EC) of those samples were determined by DRI carbon analyzer. Annual average of EC and OC concentrations of atmospheric particulates were (3.54±1.46) μg·m-3 and (19.35±9.38) μg·m-3, respectively, accounting for 2.8%±1.1% and 14.8%±4.0% of TSP mass a...