摘要
大气中光化学前体物监测可以为研究臭氧(O3)与细颗粒物(PM2.5)复合污染成因机制提供数据,监测数据的质量影响到大气污染管控精准性。科学开展监测是防控中的关键,对持续改善我国空气质量具有重要意义。挥发性有机物(VOCs)是大气中参与光化学反应产生臭氧与细颗粒物污染的重要前体物,介绍了光化学监测网中的VOCs在线监测系统的构成及功能,在初步分析质控指标及误差来源的基础上,讨论了质控结果可能存在的典型的数组分布形态,探讨了通过统计分析评估监测系统质控状态的方法,以及残留与质控结果、运行时长与组分合格率间的相关性分析。建议收集大样本量的质控数据,开展更加系统细致的质控指标间的相关性分析,探寻影响监测系统质控状态及测量数据质量的因素。
Monitoring photochemical precursors in the atmosphere can provide essential data for researching the formation mechanisms of composite pollution from ozone(O3)and fine particulate matter(PM2.5).The quality of the monitoring data significantly influences the accuracy of air pollution control measures.Therefore,executing scientific monitoring is critical for preventive measures and has paramount importance in continually improving China's air quality.Volatile Organic Compounds(VOCs),key precursors to O3 and PM2.5 pollution,participate in photochemical reactions in the atmosphere.This paper introduces the structure and function of VOCs'online monitoring systems in the photochemical monitoring network.After a preliminary analysis of quality control indicators and error sources,potential typical array distribution forms of quality control results were discussed.The paper further explores methods for evaluating the quality control status of the monitoring system through statistical analysis and conducts correlation analyses between residuals and quality control results,as well as between operational duration and component qualification rates.The paper recommends collecting a large sample of quality control data,carrying out systematic and meticulous correlation analyses among quality control indicators,and investigating factors that affect the quality control status of the monitoring system and the quality of measured data.
作者
马云云
柴文轩
李红莉
邹英杰
解倩
肖泱
徐伟红
MA Yunyun;CHAI Wenxuan;LI Hongli;ZOU Yingjie;XIE Qian;XIAO Yang;XU Weihong(Weifang Youte Testing Service Co.,Ltd.,Weifang 261000,China;China National Environmental Monitoring Center,Beijing 100012,China;Shandong Provincial Eco-environment Monitoring Center,Jinan 250000,China;Weifang Ecological Environment Monitoring Center,Weifang 261041,China;Rizhao Ecological Environment Monitoring Center,Rizhao 276800,China)
出处
《计量科学与技术》
2023年第5期64-71,共8页
Metrology Science and Technology
关键词
计量学
臭氧
细颗粒物
挥发性有机物
在线监测系统
数据统计
相关性分析
metrology
ozone
fine particulate matter
Volatile Organic Compounds
online monitoring system
statistics
correlation analysis
