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文章摘要
PM2.5中金属元素在线监测与滤膜采集-实验室检测比对
Comparison of On line Monitoring and Filter Film Collection Laboratory Testing for the Determination of Metals in PM2.5
  
DOI:
中文关键词: 金属元素  PM2.5  在线监测  滤膜采集-实验室检测
英文关键词: Metallic element  PM2.5  On line monitoring  Filter film collection laboratory testing
基金项目:江苏省环境监测科研基金资助项目(1707);南京市环保科技基金资助项目(201805)
作者单位
董晶晶 江苏省南京环境监测中心 
陆晓波 江苏省南京环境监测中心 
杨丽莉 江苏省南京环境监测中心 
丁峰 江苏省南京环境监测中心 
刘军 江苏省南京环境监测中心 
葛颖 南京大学 
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中文摘要:
      在2017年2月、5月、8月、11月期间各选取20 d连续采样,采用在线监测和滤膜采集-实验室检测2种方法分析南京市大气PM25中多种金属元素,并将两方法的测定结果作比对分析。结果表明,K、Fe、Zn、Cu、Pb、Se、V、Ni元素日均值总体相近,其余元素略有差异;Pb、As、V元素相关系数R2均在070及以上,Cu、K、Mn元素相关性略差,均具可比性。Fe、Zn、Ca、Al、Ba、Cr、Ni元素测定更偏向采用滤膜采集-实验室检测法,K、Mn、Pb、Cu、As、V、Se元素测定2种监测方法均可,若要快速且长期监测数据,则在线监测法更好。
英文摘要:
      Various metallic elements in PM2.5 in 〖JP2〗the atmosphere of Nanjing were determined by on line monitoring and filter film collection laboratory testing for 20 consecutive days each month in February, May, August and November, 2017. Comparing the test results by the two methods, daily mean values of K, Fe, Zn, Cu, Pb, Se, V and Ni were general the same, others were slightly different. The correlation coefficients R2 of Pb, 〖JP3〗As and V were all over 0.70, the correlation of Cu, K and Mn were slightly poor, and they were all comparable. Filter film collection laboratory testing method was suitable for determining Fe, Zn, Ca, Al, Ba, Cr and Ni, K, Mn, Pb, Cu, As, V and Se could be determined by the two methods. The online method was better for rapid or long term monitoring.
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