Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017JD027357 |
How Will Air Quality Change in South Asia by 2050? | |
Kumar, Rajesh1; Barth, Mary C.1; Pfister, G. G.1; Delle Monache, L.1; Lamarque, J. F.1; Archer-Nicholls, S.1,2; Tilmes, S.1; Ghude, S. D.3; Wiedinmyer, C.1; Naja, M.4; Walters, S.1 | |
2018-02-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2018 |
卷号 | 123期号:3页码:1840-1864 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; England; India |
英文摘要 | Exposure to unhealthy air causes millions of premature deaths and damages crops sufficient to feed a large portion of the South Asian population every year. However, little is known about how future air quality in South Asia will respond to changing human activities. Here we examine the combined effect of changes in climate and air pollutant emissions projected by the Representative Concentration Pathways (RCP) 8.5 and RCP6.0 on air quality of South Asia in 2050 using a state-of-the-science Nested Regional Climate model with Chemistry (NRCM-Chem). RCP8.5 and RCP6.0 are selected to represent scenarios of highest and lowest air pollution in South Asia by 2050. NRCM-Chem shows the ability to capture observed key features of variability in meteorological parameters, ozone and related gases, and aerosols. NRCM-Chem results show that surface ozone and particulate matter of less than 2.5m in diameter will increase significantly by midcentury in South Asia under the RCP8.5 but remain similar to present day under RCP6.0. No RCP suggest an improvement in air pollution in South Asia by midcentury. Under RCP8.5, the frequency of air pollution events is predicted to increase by 20-120days per year in 2050 compared to the present-day conditions, with particulate matter of less than 2.5m in diameter predicted to breach the World Health Organization ambient air quality guidelines on an almost daily basis in many parts of South Asia. These results indicate that while the RCP scenarios project a global improvement in air quality, they generally result in degrading air quality in South Asia. |
英文关键词 | air quality ozone PM2 5 RCP South Asia |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000426074000023 |
WOS关键词 | BLACK CARBON AEROSOLS ; EARTH SYSTEM MODEL ; SURFACE OZONE ; URBAN SITE ; TROPOSPHERIC CHEMISTRY ; HEMISPHERIC TRANSPORT ; CHEMICAL-COMPOSITION ; INTEGRATED CAMPAIGN ; SURROUNDING REGIONS ; PREMATURE MORTALITY |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | 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/32539 |
专题 | 气候变化 |
作者单位 | 1.Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USA; 2.Univ Cambridge, Dept Chem, Cambridge, England; 3.Indian Inst Trop Meteorol, Pune, Maharashtra, India; 4.Aryabhatta Res Inst Observat Sci, Naini Tal, India |
推荐引用方式 GB/T 7714 | Kumar, Rajesh,Barth, Mary C.,Pfister, G. G.,et al. How Will Air Quality Change in South Asia by 2050?[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(3):1840-1864. |
APA | Kumar, Rajesh.,Barth, Mary C..,Pfister, G. G..,Delle Monache, L..,Lamarque, J. F..,...&Walters, S..(2018).How Will Air Quality Change in South Asia by 2050?.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(3),1840-1864. |
MLA | Kumar, Rajesh,et al."How Will Air Quality Change in South Asia by 2050?".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.3(2018):1840-1864. |
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