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DOI | 10.1088/1748-9326/aad2e2 |
Connections between summer air pollution and stagnation | |
Kerr, Gaige Hunter; Waugh, Darryn W. | |
2018-08-01 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS |
ISSN | 1748-9326 |
出版年 | 2018 |
卷号 | 13期号:8 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | The body of literature on ambient air pollution suggests that atmospheric stagnation events trigger high levels of air pollution. In this paper we use fifteen years (2000-2014) of summertime in situ air quality measurements together with meteorological reanalysis data to examine the temporal correlation of pollutants with the Air Stagnation Index (ASI) on daily timescales. We find that while the direction of the relationship between the ASI and summertime PM2.5 and O-3 ranges from near-zero to positive throughout regions comprising the contiguous United States (US), the strength of the relationship is very weak (e.g. in the Northeast the correlation coefficient between the ASI and PM2.5 is 0.09). Moreover, similar to our analysis of the correlation of day-to-day variations of the ASI and pollutants, the percentage of co-occurring extreme pollution and stagnation events is small (e.g. days with a high coverage of stagnation only co-occur with extreme pollution events about one-third of the time in the Northeast). The southern US is an exception to our overall findings as the strength of the relationship between the ASI and pollution is stronger and the percentage of co-occurring events is higher compared with other regions. The results of this study suggest a reevaluation of the ASI as an index to assess meteorological and climatic impacts to air quality. |
英文关键词 | air quality pollution particulate matter ozone stagnation meteorology |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000439357900001 |
WOS关键词 | EASTERN-UNITED-STATES ; SURFACE OZONE VARIABILITY ; PARTICULATE MATTER ; CLIMATE-CHANGE ; TROPOSPHERIC OZONE ; PM2.5 ; US ; SENSITIVITY ; QUALITY ; WEATHER |
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/15065 |
专题 | 气候变化 |
作者单位 | Johns Hopkins Univ, Dept Earth & Planetary Sci, Baltimore, MD 21218 USA |
推荐引用方式 GB/T 7714 | Kerr, Gaige Hunter,Waugh, Darryn W.. Connections between summer air pollution and stagnation[J]. ENVIRONMENTAL RESEARCH LETTERS,2018,13(8). |
APA | Kerr, Gaige Hunter,&Waugh, Darryn W..(2018).Connections between summer air pollution and stagnation.ENVIRONMENTAL RESEARCH LETTERS,13(8). |
MLA | Kerr, Gaige Hunter,et al."Connections between summer air pollution and stagnation".ENVIRONMENTAL RESEARCH LETTERS 13.8(2018). |
条目包含的文件 | 条目无相关文件。 |
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