Pollution plumes observed by aircraft over North China during the IPAC-NC field campaign  

作　　者：MA JianZhong WANG Wei LIU HongJie CHEN Yue XU XiaoBin LELIEVELD Jos 

机构地区：[1]Chinese Academy of Meteorological Sciences [2]Chinese Research Academy of Environmental Sciences [3]Max Planck Institute for Chemistry, 55128 Mainz, Germany [4]The Cyprus Institute, 1645 Nicosia, Cyprus

出　　处：《Chinese Science Bulletin》2013年第34期4329-4336,共8页

基　　金：supported by the National Natural Science Foundation of China(40433008);the National Basic Research Program of China(2011CB706903);the China Special Fund for Meteorological Research in the Public Interest(GYHY201206015)

摘　　要：Strong pollution emissions from large urban and industrial centres in eastern China are thought to greatly impact regional air quality and global atmospheric chemistry.In this study,we investigate extensive pollution plumes over North China,observed by aircraft during the IPAC-NC(Influence of Pollution on Aerosols and Cloud Microphysics in North China)field campaign in spring 2006.Several pollution plumes were encountered,characterized by sharp and strong increases of SO2and NOx(NO plus NO2)as well as remarkable O3variability.During a flight performed downwind of the megacity Tianjin on 9 April,O3was found to be depleted at NOx>15 ppbv and enhanced at NOx mixing ratios of 6–7 ppbv.Our analysis indicates that the plumes had recently been released by industrial plants,and partly mixed with urban emissions,giving rise to the large-scale transport of air pollution and substantial degradation of air quality.Strong pollution emissions from large urban and industrial centres in eastern China are thought to greatly impact regional air qual ity and global atmospheric chemistry. In this study, we investigate extensive pollution plumes over North China, observed by aircraft during the IPACNC （Influence of Pollution on Aerosols and Cloud Microphysics in North China） field campaign in spring 2006. Several pollution plumes were encountered, characterized by sharp and strong increases of SO2 and NOx （NO plus NO2） as well as remarkable 03 variability. During a flight performed downwind of the megacity Tianjin on 9 April, 03 was found to be depleted at NOx〉15 ppbv and enhanced at NOx mixing ratios of 67 ppbv. Our analysis indicates that the plumes had re cently been released by industrial plants, and partly mixed with urban emissions, giving rise to the largescale transport of air pollution and substantial degradation of air quality.

关 键 词：中国北方 飞机观测 污染羽 中国东部地区 空气质量 氮氧化物 工业厂房 大城市 

分 类 号：X51[环境科学与工程—环境工程]