Revisiting the Concentration Observations and Source Apportionment of Atmospheric Ammonia  

作　　者：Yuepeng PAN Mengna GU Yuexin HE Dianming WU Chunyan LIU Linlin SONG Shili TIAN Xuemei LÜ Yang SUN Tao SONG Wendell WWALTERS Xuejun LIU Nicholas AMARTIN Qianqian ZHANG Yunting FANG Valerio FERRACCI Yuesi WANG 

机构地区：[1]State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry,Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing 100029,China [2]University of Chinese Academy of Sciences,Beijing 100049,China [3]Center for Excellence in Urban Atmospheric Environment,Institute of Urban Environment,Chinese Academy of Sciences,Xiamen 361021,China [4]Key Laboratory of Geographic Information Sciences,Ministry of Education,School of Geographic Sciences,East China Normal University,Shanghai 200241,China [5]CAS Key Laboratory of Forest Ecology and Management,Institute of Applied Ecology,Chinese Academy of Sciences,Shenyang 110016,China [6]Department of Earth,Environmental,and Planetary Sciences,Brown University,Providence,RI 02912,USA [7]Institute at Brown for Environment and Society,Brown University,Providence,RI 02912,USA [8]College of Resources and Environmental Sciences,China Agricultural University,Beijing 100193,China [9]National Physical Laboratory,Air Quality and Aerosol Metrology Group,Environment Department,Hampton Road,Teddington,Middlesex,TW110LW,UK [10]National Satellite Meteorological Center,China Meteorological Administration,Beijing,100081,China [11]Key Laboratory of Stable Isotope Techniques and Applications,Shenyang 110016,China [12]Centre for Environmental and Agricultural Informatics,Cranfield University,College Road,MK430AL,UK

出　　处：《Advances in Atmospheric Sciences》2020年第9期933-938,共6页大气科学进展（英文版）

基　　金：supported by the National Key Research and Development Program of China(Grant No.2017YFC0210100);National Research Program for Key Issues in Air Pollution Control(Grant No.DQGG0208);the National Natural Science Foundation of China(Grant No.41405144);WWW acknowledges support from the Atmospheric and Geospaces Sciences U.S.National Science Foundation(Grant No.AGS 1351932)。

摘　　要：While China’s Air Pollution Prevention and Control Action Plan on particulate matter since 2013 has reduced sulfate significantly,aerosol ammonium nitrate remains high in East China.As the high nitrate abundances are strongly linked with ammonia,reducing ammonia emissions is becoming increasingly important to improve the air quality of China.Although satellite data provide evidence of substantial increases in atmospheric ammonia concentrations over major agricultural regions,long-term surface observation of ammonia concentrations are sparse.In addition,there is still no consensus on whether agricultural or non-agricultural emissions dominate the urban ammonia budget.Identifying the ammonia source by nitrogen isotope helps in designing a mitigation strategy for policymakers,but existing methods have not been well validated.Revisiting the concentration measurements and identifying source apportionment of atmospheric ammonia is thus an essential step towards reducing ammonia emissions.

关 键 词：AMMONIA NITRATE AMMONIA 

分 类 号：X51[环境科学与工程—环境工程]