Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-17-12031-2017 |
A modeling study of the nonlinear response of fine particles to air pollutant emissions in the Beijing-Tianjin-Hebei region | |
Zhao, Bin1,2,3,4,5; Wu, Wenjing1,2,3; Wang, Shuxiao1,2,3; Xing, Jia1,2,3; Chang, Xing1,2,3; Liou, Kuo-Nan4,5; Jiang, Jonathan H.6; Gu, Yu4,5; Jang, Carey7; Fu, Joshua S.8; Zhu, Yun9; Wang, Jiandong1,2,3; Lin, Yan10; Hao, Jiming1,2,3 | |
2017-10-10 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2017 |
卷号 | 17期号:19 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA; Norway |
英文摘要 | The Beijing-Tianjin-Hebei (BTH) region has been suffering from the most severe fine particle (PM2.5) pollution in China, which causes serious health damage and economic loss. Quantifying the source contributions to PM2.5 concentrations has been a challenging task because of the complicated non-linear relationships between PM2.5 concentrations and emissions of multiple pollutants from multiple spatial regions and economic sectors. In this study, we use the Extended Response Surface Modeling (ERSM) technique to investigate the nonlinear response of PM2.5 and its major chemical components to emissions of multiple pollutants from different regions and sectors over the BTH region, based on over 1000 simulations by a chemical transport model (CTM). The ERSM-predicted PM2.5 concentrations agree well with independent CTM simulations, with correlation coefficients larger than 0.99 and mean normalized errors less than 1 %. Using the ERSM technique, we find that primary inorganic PM2.5 is the single pollutant which makes the largest contribution (24-36 %) to PM2.5 concentrations. The contribution of primary inorganic PM2.5 emissions is especially high in heavily polluted winter, and is dominated by the industry as well as residential and commercial sectors, which should be prioritized in PM2.5 control strategies. The total contributions of all precursors (nitrogen oxides, NOx; sulfur dioxides, SO2; ammonia, NH3; non-methane volatile organic compounds, NMVOC; intermediate-volatility organic compounds, IVOC; primary organic aerosol, POA) to PM2.5 concentrations range between 31 % and 48 %. Among these precursors, PM2.5 concentrations are primarily sensitive to the emissions of NH3, NMVOC + IVOC, and POA. The sensitivities increase substantially for NH3 and NOx, and decrease slightly for POA and NMVOC + IVOC with the increase in the emission reduction ratio, which illustrates the nonlinear relationships between precursor emissions and PM2.5 concentrations. The contributions of primary inorganic PM2.5 emissions to PM2.5 concentrations are dominated by local emission sources, which account for over 75 % of the total primary inorganic PM2.5 contributions. For precursors, however, emissions from other regions could play similar roles to local emission sources in the summer and over the northern part of BTH. The source contribution features for various types of heavy-pollution episodes are distinctly different from each other and from the monthly mean results, illustrating that control strategies should be differentiated based on the major contributing sources during different types of episodes. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000412648500004 |
WOS关键词 | SECONDARY ORGANIC AEROSOL ; PARTICULATE MATTER POLLUTION ; ADJOINT SENSITIVITY-ANALYSIS ; YANGTZE-RIVER DELTA ; SEVERE WINTER HAZE ; INORGANIC AEROSOLS ; SOURCE APPORTIONMENT ; HISTORICAL TRENDS ; CONTROL POLICIES ; GLOBAL BURDEN |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/29485 |
专题 | 地球科学 |
作者单位 | 1.Tsinghua Univ, Sch Environm, Beijing 100084, Peoples R China; 2.Tsinghua Univ, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100084, Peoples R China; 3.State Environm Protect Key Lab Sources & Control, Beijing 100084, Peoples R China; 4.Univ Calif Los Angeles, Joint Inst Reg Earth Syst Sci & Engn, Los Angeles, CA 90095 USA; 5.Univ Calif Los Angeles, Dept Atmospher & Ocean Sci, Los Angeles, CA 90095 USA; 6.CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA; 7.US EPA, Res Triangle Pk, NC 27711 USA; 8.Univ Tennessee, Dept Civil & Environm Engn, Knoxville, TN 37996 USA; 9.South China Univ Technol, Sch Environm Sci & Engn, Guangzhou 510006, Guangdong, Peoples R China; 10.Norwegian Inst Water Res, N-0349 Oslo, Norway |
推荐引用方式 GB/T 7714 | Zhao, Bin,Wu, Wenjing,Wang, Shuxiao,et al. A modeling study of the nonlinear response of fine particles to air pollutant emissions in the Beijing-Tianjin-Hebei region[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2017,17(19). |
APA | Zhao, Bin.,Wu, Wenjing.,Wang, Shuxiao.,Xing, Jia.,Chang, Xing.,...&Hao, Jiming.(2017).A modeling study of the nonlinear response of fine particles to air pollutant emissions in the Beijing-Tianjin-Hebei region.ATMOSPHERIC CHEMISTRY AND PHYSICS,17(19). |
MLA | Zhao, Bin,et al."A modeling study of the nonlinear response of fine particles to air pollutant emissions in the Beijing-Tianjin-Hebei region".ATMOSPHERIC CHEMISTRY AND PHYSICS 17.19(2017). |
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