高海拔环境下臭氧标准传递试验研究
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摘要
臭氧作为环境空气污染物基本监测项目之一,其浓度的准确监测是评价环境空气质量的基础,对研究光化学烟雾成因具有重要意义。由于臭氧常温常压下极易分解,很难对臭氧自动监测设备测量值的准确度进行检查。臭氧量值传递体系成为有效的解决方法,但是该体系如何适用于国家环境质量监测网的运行特点,如何开展科学、有效的量值传递工作有待研究。本文讨论了体系在高海拔环境下的广泛适用性,利用经中国环境监测总站SRP(以下简称"总站SRP")臭氧一级校准后的API-T750u臭氧二级传递标准开展了臭氧二级校准工作。通过对仪器背景压力修正,和斜率、截距校准过程中测量值标准偏差的控制,可以顺利通过6×6的臭氧量值循环比对验证,并得到Therno-49iPS臭氧传递标准测量值溯源至总站SRP的校准曲线y=1.0032·x+0.96。API-T750u臭氧二级传递标准向下一级进行传递后,经过与总站SRP再校准完成整个臭氧二级量值传递过程。
引文
[1]孟晓艳,王瑞斌,杜丽,李建军,余予,《试点城市O_3浓度特征分析》,中国环境监测,第29卷第1期2013年2月
[2]Richard.J.Paur,Arnold.M.Bass,James E.Norris,Standard Reference Photometer for the Assay of Ozone in Calibration Atmospheres.NISTIR 6369,2003.
[3]James E.Norris,Alan H.Band,Robert J.Biss,Franklin R.Guenther,Upgrade and Intercomparison of the U.S.Environmental Protection Agencies Ozone Reference Standards.Re search Gate,conference paper,June 2004
[4]James E.Norris,Steven J.Choquette,Joele Viallon,Philippe Moussay,Robert Wielgosz,Franklin R.Guenther,Temperature measurement and optical path-length bias improvement modifications to National Institute of Standards and Technology ozone reference standards,Journal of the Air&Waste Management Association,63(5):565-574,2013
[5]夏新,元洁,吴晓凤,姚雅伟,魏恩棋,刘跃,《环境空气自动监测系统质量管理体系框架》,中国环境管理,2013年第5卷第4期
[6]Transfer Standards For Calibration of Air Monitoring Analyzers for Ozone,Technical Assistance Document,EPA,October 2013
[2]Richard.J.Paur,Arnold.M.Bass,James E.Norris,Standard Reference Photometer for the Assay of Ozone in Calibration Atmospheres.NISTIR 6369,2003.
[3]James E.Norris,Alan H.Band,Robert J.Biss,Franklin R.Guenther,Upgrade and Intercomparison of the U.S.Environmental Protection Agencies Ozone Reference Standards.Re search Gate,conference paper,June 2004
[4]James E.Norris,Steven J.Choquette,Joele Viallon,Philippe Moussay,Robert Wielgosz,Franklin R.Guenther,Temperature measurement and optical path-length bias improvement modifications to National Institute of Standards and Technology ozone reference standards,Journal of the Air&Waste Management Association,63(5):565-574,2013
[5]夏新,元洁,吴晓凤,姚雅伟,魏恩棋,刘跃,《环境空气自动监测系统质量管理体系框架》,中国环境管理,2013年第5卷第4期
[6]Transfer Standards For Calibration of Air Monitoring Analyzers for Ozone,Technical Assistance Document,EPA,October 2013