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空气自动监测中PM2.5与PM10 “倒挂”现象特征及原因
引用本文:潘本锋,郑皓皓,李莉娜,汪巍.空气自动监测中PM2.5与PM10 “倒挂”现象特征及原因[J].中国环境监测,2014,30(5):90-95.
作者姓名:潘本锋  郑皓皓  李莉娜  汪巍
作者单位:中国环境监测总站,国家环境保护环境监测质量控制重点实验室,北京100012
基金项目:中国工程院2013年咨询研究项目“我国环境空气PM2.5例行监测技术体系与研究性监测技术体系研究”(2013-ZD-2-5-1)
摘    要:采用不同原理的自动监测仪器在不同季节同时测定PM2.5与PM10,对所得数据中的PM2.5与PM10"倒挂"现象进行分析。结果表明,当PM10采用振荡天平法时,PM2.5与PM10的"倒挂"率较高;冬季和夏季"倒挂"现象发生率明显高于其他季节;造成PM2.5与PM10"倒挂"的原因主要有监测过程中的随机误差,PM2.5与PM10的监测方法原理不同,监测方法之间存在显著差异等。

关 键 词:PM2.5  PM10  环境空气自动监测  “倒挂”现象
收稿时间:2014/4/21 0:00:00
修稿时间:2014/6/25 0:00:00

The Characteristic and Reason about the Reversal Between PM2.5 and PM10 in Ambient Air Quality Automatic Monitoring
PAN Ben-feng,ZHENG Hao-hao,LI Li-na and WANG Wei.The Characteristic and Reason about the Reversal Between PM2.5 and PM10 in Ambient Air Quality Automatic Monitoring[J].Environmental Monitoring in China,2014,30(5):90-95.
Authors:PAN Ben-feng  ZHENG Hao-hao  LI Li-na and WANG Wei
Institution:State Environmental Protection Key Laboratory of Quality Control in Environmental Monitoring, ChinaNational Environmental Monitoring Centre, Beijing 100012, China;State Environmental Protection Key Laboratory of Quality Control in Environmental Monitoring, ChinaNational Environmental Monitoring Centre, Beijing 100012, China;State Environmental Protection Key Laboratory of Quality Control in Environmental Monitoring, ChinaNational Environmental Monitoring Centre, Beijing 100012, China;State Environmental Protection Key Laboratory of Quality Control in Environmental Monitoring, ChinaNational Environmental Monitoring Centre, Beijing 100012, China
Abstract:Monitored PM using some different kinds of monitoring devices simultaneously in different seasons, analysised the revesal phenomenon between PM2.5 and PM10, result showed that when use a tapered element oscillating microbalance(TEOM) device to monitor PM10, could get more reverse data between PM2.5 and PM10 than using a beta attenuation monitor, in different seasons, the probability of reversal was higher in summer and winter.Analysed the monitoring principle and method about PM2.5 and PM10,and the structure of all kinds of monitoring instruments,we could come to the conclusion that the main reason cause the reversal between PM2.5 and PM10, included that stochastic error, difference among all kinds of monitoring methods, and so on.
Keywords:PM2  5  PM10  ambient air quality automatic monitoring  reversal
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