Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL090164 |
Impacts of Traffic Reductions Associated with COVID‐19 on Southern California Air Quality | |
H. A. Parker; S. Hasheminassab; J. D. Crounse; C. M. Roehl; P. O. Wennberg | |
2020-11-23 | |
发表期刊 | Geophysical Research Letters
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出版年 | 2020 |
英文摘要 | On 19 March 2020, California put in place Stay‐At‐Home orders to reduce the spread of SARS‐CoV‐2. As a result, decreases up to 50% in traffic occurred across the South Coast Air Basin (SoCAB). We report that, compared to the 19 March to 30 June period of the last five years, the 2020 concentrations of PM2.5 and NOx showed an overall reduction across the basin. O3 concentrations decreased in the western part of the basin and generally increased in the downwind areas. The NOx decline in 2020 (approximately 27% basin‐wide) is in addition to ongoing declines over the last two decades (on average 4% less than the ‐6.8% per year afternoon NO2 concentration decrease) and provides insight into how air quality may respond over the next few years of continued vehicular reductions. The modest changes in O3 suggests additional mitigation will be necessary to comply with air quality standards. |
领域 | 气候变化 |
URL | 查看原文 |
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/304806 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | H. A. Parker,S. Hasheminassab,J. D. Crounse,等. Impacts of Traffic Reductions Associated with COVID‐19 on Southern California Air Quality[J]. Geophysical Research Letters,2020. |
APA | H. A. Parker,S. Hasheminassab,J. D. Crounse,C. M. Roehl,&P. O. Wennberg.(2020).Impacts of Traffic Reductions Associated with COVID‐19 on Southern California Air Quality.Geophysical Research Letters. |
MLA | H. A. Parker,et al."Impacts of Traffic Reductions Associated with COVID‐19 on Southern California Air Quality".Geophysical Research Letters (2020). |
条目包含的文件 | 条目无相关文件。 |
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