不同采样膜对PM_(2.5)质量浓度测定影响研究  

Impacts of Different Sampling Filter on Determination of the PM_(2.5) Concentration

作　　者：孟晓艳[1] 杜丽[1] 王晓彦[1] 李钢[1] 齐炜红 赵熠琳[1] 李健军[1] 王瑞斌[1] 

机构地区：[1]中国环境监测总站,北京100012 [2]邯郸市环境监测站,邯郸584838

出　　处：《环境与可持续发展》2013年第5期22-25,共4页Environment and Sustainable Development

基　　金：国家环境标准制修订"空气污染指数评价方法改进"(2011-38)

摘　　要：本文利用四台美国热电公司的RP2000i仪器,使用特氟隆膜和石英膜对环境空气中的PM2.5进行采样与分析。分析结果表明:使用特氟隆膜和石英膜获得PM2.5日均浓度具有良好可比性;特氟隆膜测得的PM2.5浓度均比石英膜低,且浓度差百分比随着PM2.5浓度值的升高而降低,当相对湿度处于50%至60%时,浓度差百分比最小;放置冰箱时间对采样后的特氟隆膜和石英膜质量基本无影响。Using four instruments named RP2000i with teflon filter and quartz filter, the daily concentrations of PM2.5 were manually sampled and analyzed. The results showed： the daily concentrations of PM2.5 measured with teflon filter and quartz filter showed good relative correlation; the daily concentrations of PM2.5 using teflon filter were lower that using quartz filter, and the ratio of concentration difference descended with increasing of daily concentration of PM2.5, the ratio was the lowest when the relative humidity was between 50% to 60% ; There was little influence to the mass of sampling filters regarding their storied time in the refrigeratory.

关 键 词：特氟隆膜 石英膜 PM2 5浓度 相对湿度 

分 类 号：X831[环境科学与工程—环境工程]