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Impacts of biogenic and anthropogenic emissions on summertime ozone formation in the Guanzhong Basin, China
Li, Nan1,2; He, Qingyang2,3; Greenberg, Jim4; Guenther, Alex5; Li, Jingyi1; Cao, Junji2,6; Wang, Jun7; Liao, Hong1; Wang, Qiyuan2; Zhang, Qiang8
2018-05-30
发表期刊ATMOSPHERIC CHEMISTRY AND PHYSICS
卷号18期号:10页码:7489-7507
文章类型Article
摘要This study is the first attempt to understand the synergistic impact of anthropogenic and biogenic emissions on summertime ozone (O-3) formation in the Guanzhong (GZ) Basin where Xi'an, the oldest and the most populous city (with a population of 9 million) in northwestern China, is located. Month-long (August 2011) WRF-Chem simulations with different sensitivity experiments were conducted and compared with near-surface measurements. Biogenic volatile organic compounds (VOCs) concentrations was characterized from six surface sites among the Qinling Mountains, and urban air composition was measured in Xi'an city at a tower 100ma.s. The WRF-Chem control experiment reasonably reproduced the magnitudes and variations of observed O-3, VOCs, NOx, PM2.5, and meteorological parameters, with normalized mean biases for each parameter within +/- 21 %. Subsequent analysis employed the factor separation approach (FSA) to quantitatively disentangle the pure and synergistic impacts of anthropogenic and/or biogenic sources on summertime O-3 formation. The impact of anthropogenic sources alone was found to be dominant for O-3 formation. Although anthropogenic particles reduced NO2 photolysis by up to 60 %, the anthropogenic sources contributed 19.1 ppb O-3 formation on average for urban Xi'an. The abundant biogenic VOCs from the nearby forests promoted O-3 formation in urban areas by interacting with the anthropogenic NOx. The calculated synergistic contribution (from both biogenic and anthropogenic sources) was up to 14.4 ppb in urban Xi'an, peaking in the afternoon. Our study reveals that the synergistic impact of individual source contributions to O-3 formation should be considered in the formation of air pollution control strategies, especially for big cities in the vicinity of forests.
WOS标题词Science & Technology ; Physical Sciences
DOI10.5194/acp-18-7489-2018
关键词[WOS]SOUTHEAST UNITED-STATES ; VOLATILE ORGANIC-COMPOUNDS ; TROPOSPHERIC OZONE ; SURFACE OZONE ; ISOPRENE EMISSIONS ; AIR-QUALITY ; PARTICULATE MATTER ; LAND-USE ; CHEMICAL MECHANISM ; URBAN LOCATIONS
收录类别SCI
语种英语
WOS研究方向Meteorology & Atmospheric Sciences
WOS类目Meteorology & Atmospheric Sciences
WOS记录号WOS:000433511900002
引用统计
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/5151
专题粉尘与环境研究室
作者单位1.Nanjing Univ Informat Sci & Technol, Jiangsu Key Lab Atmospher Environm Monitoring & C, Jiangsu Collaborat Innovat Ctr Atmospher Environm, Sch Environm Sci & Engn, Nanjing 210044, Jiangsu, Peoples R China
2.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Key Lab Aerosol Chem & Phys, Xian 710061, Shaanxi, Peoples R China
3.Nanjing Star Jelly Environm Consultants Co Ltd, Nanjing 210013, Jiangsu, Peoples R China
4.Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USA
5.Univ Calif Irvine, Dept Earth Syst Sci, Irvine, CA 92697 USA
6.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian 710049, Shaanxi, Peoples R China
7.Univ Iowa, Dept Chem & Biochem Engn, Ctr Global & Reg Environm Res, Iowa City, IA 52242 USA
8.Tsinghua Univ, Dept Earth Syst Sci, Beijing 100084, Peoples R China
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GB/T 7714
Li, Nan,He, Qingyang,Greenberg, Jim,et al. Impacts of biogenic and anthropogenic emissions on summertime ozone formation in the Guanzhong Basin, China[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(10):7489-7507.
APA Li, Nan.,He, Qingyang.,Greenberg, Jim.,Guenther, Alex.,Li, Jingyi.,...&Zhang, Qiang.(2018).Impacts of biogenic and anthropogenic emissions on summertime ozone formation in the Guanzhong Basin, China.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(10),7489-7507.
MLA Li, Nan,et al."Impacts of biogenic and anthropogenic emissions on summertime ozone formation in the Guanzhong Basin, China".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.10(2018):7489-7507.
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