PM_(2.5)手工标准方法与自动监测法比对分析  

Intercomparison of PM_(2.5) concentration measured by gravimetric measurement method and automated monitoring method

作　　者：郑翔翔[1] 洪正昉[1] 陈浩[1] 陈微[1] 黄芳[1] 吕晶[1] 吴军[1] 

机构地区：[1]浙江省环境监测中心,浙江杭州310015

出　　处：《环境污染与防治》2015年第7期77-81,共5页Environmental Pollution & Control

基　　金：浙江省科技计划项目(No.2012A011)

摘　　要：选取金华、衢州、温州、丽水、宁波、杭州6个城市开PM2．5手工标准方法和自动监测法比对实验，并用相关性和相对偏差两个指标对比对结果进行分析和评价。结果表明：（1）2013年6个采样城市采集的PM25手工和自动监测值均具有较好的相关性（相关系数均在0．95以上），截距均在-0．010～0．010mg／m3，但斜率相差较大（衢州和丽水在0．90以上；金华、温州和杭州在0．85～0．90；宁波在0．80以下）。（2）2013年6个城市采集的PM2．5手工和自动监测值的相对偏差为-34．2％～36．5％；PMe5手工和自动监测值相对偏差在土15％范围内的数据占总数据量的82．6％；负偏差数据占总数据量的80．0％。（3）PM25手工标准方法和自动监测法的比对差异与地域、季节和PM2.5浓度等条件有关。总体上，不同地区PM2．5手工与自动监测值相对偏差绝对值（｜RD｜）年平均值为衢州〈丽水〈金华〈宁波〈温州〈杭州；春季PM2．5手工与自动监测值IRDI平均值高于夏季，秋季高于冬季；各采样城市PM2．5手工和自动监测值}RDl平均值在高质量浓度（PMe5手工监测值（ρ1）〉0．150mg／m3）下最小，中质量浓度（0．050≤ρ1≤0．150mg／m3）下最大，低质量浓度（ρ1〈0．050nag／m3）下介于两者之间。PM2.5 concentration was monitored in 6 cities in Zhejiang Province,Jinhua,Quzhou,Wenzhou,Lishui, Ningbo and Hangzhou,using gravimetric measurement method and automated monitoring method in 2013. The collected data was analyzed and estimated by two indexes of correlation and relative deviation. The results were as follows： （1） Correlation analysis indicated that there was good relativity between gravimetric measurement method and automated monitoring method in 6 cities. The correlation efficients were all higher than 0.95 and the intercepts Were all in the range of --0.010-0.010 mg/m3 ,but the slopes varied. The slope was higher than 0.90 in Quzhou and Lishui, in the range of 0.85-0.90 in Jinhua,Wenzhou and Hangzhou,lower than 0.80 in Ningbo. （2） The results of relative deviation analysis showed that the relative deviation between gravimetric measurement method and automated monito- ring method in 6 cities was in the range of --34.2 %-36.5 %. The relative deviation data in the range of ± 15 % and the negative values accounted for 82.6% and 80.0% of the total samples, respectively. （3） The divergence between PM2.5 gravimetrie measurement method and automated monitoring method was related to regional condition, season and PM2.5 concentrations. The annual average of absolute relative deviation （ ｜ RD ｜ ） between gravimetric measurement method and automated monitoring method in different cities exhibited an order of Quzhou 〈 Lishui〈 Jinhua〈 Ningbo〈Wenzhou〈Hangzhou. Generally speaking, the average of absolute relative deviation in spring was higher than that in summer, while in autumn it was higher than that in winter. The average of absolute relative deviation between gravimetric measurement method and automated monitoring method was the lowest under the high-concentration （ρl 〉0.150 mg/m3） ,the highest under the middle-concentration （0.050≤ρ1≤ 40.150 mg/m3 ）. The average of absolute relative deviation under the low-concentration （ρ1〈0.050 mg/m3） was between that

关 键 词：PM2.5 手工标准方法 自动监测法 比对 

分 类 号：X831[环境科学与工程—环境工程]