Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL091591 |
More significant impacts from new particle formation on haze formation during COVID‐19 lockdown | |
Lizi Tang; Dongjie Shang; Xin Fang; Zhijun Wu; Yanting Qiu; Shiyi Chen; Xin Li; Limin Zeng; Song Guo; Min Hu | |
2021-03-10 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2021 |
英文摘要 | During the COVID‐19 lockdown in 2020, large‐scale industrial and transportation emissions were reduced, but high PM2.5 concentration still occurred. This study investigated the variation of particle number size distribution (PNSD) during the lockdown, and analyzed the characteristics of new particle formation (NPF) events and its potential impact on haze formation. Through measurement conducted in urban Beijing during the first three months of 2020, and comparison with year‐over‐year data, the decrease of primary Aitken‐mode particles was observed. However, frequencies, formation rates and growth rates of NPF events remained stable between 2020 and 2019 in the same period. As a result, >25 nm particles produced by NPF events, would play a more important role in serving as the haze formation “seeds” compared to those produced by primary emissions. This finding emphasizes the significance on the understanding of NPF mechanisms when making pollution mitigation policy in the future. |
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/318557 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Lizi Tang,Dongjie Shang,Xin Fang,等. More significant impacts from new particle formation on haze formation during COVID‐19 lockdown[J]. Geophysical Research Letters,2021. |
APA | Lizi Tang.,Dongjie Shang.,Xin Fang.,Zhijun Wu.,Yanting Qiu.,...&Min Hu.(2021).More significant impacts from new particle formation on haze formation during COVID‐19 lockdown.Geophysical Research Letters. |
MLA | Lizi Tang,et al."More significant impacts from new particle formation on haze formation during COVID‐19 lockdown".Geophysical Research Letters (2021). |
条目包含的文件 | 条目无相关文件。 |
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