Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021GL092395 |
Mitigated PM2.5 changes by the regional transport during the COVID‐19 lockdown in Shanghai, China | |
Yixuan Gu; Fengxia Yan; Jianming Xu; Yusen Duan; Qingyan Fu; Yuanhao Qu; Hong Liao | |
2021-04-11 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2021 |
英文摘要 | Intensive observations and WRF‐Chem simulations are applied in this study to investigate the adverse impacts of regional transport on the PM2.5 (fine particulate matter; diameter ≤ 2.5 μm) changes in Shanghai during the Coronavirus Disease 2019 lockdown. As the local atmospheric oxidation capacity was observed to be generally weakened, strong regional transport carried by the frequent westerly winds is suggested to be the main driver of the unexpected pollution episodes, increasing the input of both primary and secondary aerosols. Contributing 40‒80% to the PM2.5, the transport contributed aerosols are simulated to exhibit less decreases (13.2‒21.8%) than the local particles (37.1‒64.8%) in urban Shanghai due to the lockdown, which largely results from the less decreased industrial and residential emissions in surrounding provinces. To reduce the influence of the transport, synergetic emission control, especially synergetic ammonia control, measures are proved to be effective strategies, which needs to be considered in future regulations. |
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/322016 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Yixuan Gu,Fengxia Yan,Jianming Xu,等. Mitigated PM2.5 changes by the regional transport during the COVID‐19 lockdown in Shanghai, China[J]. Geophysical Research Letters,2021. |
APA | Yixuan Gu.,Fengxia Yan.,Jianming Xu.,Yusen Duan.,Qingyan Fu.,...&Hong Liao.(2021).Mitigated PM2.5 changes by the regional transport during the COVID‐19 lockdown in Shanghai, China.Geophysical Research Letters. |
MLA | Yixuan Gu,et al."Mitigated PM2.5 changes by the regional transport during the COVID‐19 lockdown in Shanghai, China".Geophysical Research Letters (2021). |
条目包含的文件 | 条目无相关文件。 |
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