Impact of meteorological conditions on a nine-day particulate matter pollution event observed in December 2013,Shanghai,China

查看全文 作　　者：Jianming [1]Xu;Fengxia [2]Yan;Ying [1]Xie;Fengyun [2]Wang;Jianbin [1]Wu;Qingyan [3]Fu

机构地区：[1]Shanghai Meteorological Bureau;[2]Meteorological Center of Traffic Management Bureau of East China;[3]Shanghai Environmental Monitoring Center

出　　处：《Particuology》索引2015年第13卷第3期,共11页

基　　金：supported by the National Natural Science Foundation of China under Grant No.41375014;the Project of Science and Technology Commission of Shanghai Municipality under Grant Nos.12dz1202702 and 14DZ1202904;and the Project of Scientific and Technological New Star of Shanghai Meteorological Bureau under Grant Nos.QM201204 and MS201212 摘　　要：A severe particulate matter pollution event occurred in Shanghai from 1 to 9 December 2013.The mean hourly mass concentrations of PM_(2.5) and PM_(10) were 211.9 and 249.0 μg/m^3,respectively.Reanalysis data,in situ,and remote-sensing measurements were used to examine the impacts of meteorological conditions on this event.It was found that the synoptic pattern of weak pressure,the reduced planetary boundary layer height,and the passage of two cold fronts were key factors causing the event.Four stages were identified during this event based on the evolution of its PM_(2.5) levels and weather conditions.The highest concentration of PM2.5(602 μg/m^3) was observed in stage 3.High PM2.5 concentrations were closely associated with a low local ventilation index,with an average of 505m^2/s,as well as with the influx of pollutants from upstream,transported by the cold fronts. 关键词：可吸入颗粒物污染事件气象条件上海中国质量浓度天气条件再分析资料

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Impact of meteorological conditions on a nine-day particulate matter pollution event observed in December 2013,Shanghai,China

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