Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL090444 |
Variation in concentration and sources of black carbon in a megacity of China during the COVID‐19 pandemic | |
Liang Xu; Jian Zhang; Xin Sun; Shengchen Xu; Meng Shan; Qi Yuan; Lei Liu; Zhenhong Du; Dantong Liu; Da Xu; Congbo Song; Bowen Liu; Gongda Lu; Zongbo Shi; Weijun Li | |
2020-11-16 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2020 |
英文摘要 | Black carbon (BC) not only warms the atmosphere but also affects human health. The nationwide lockdown due to the COVID‐19 pandemic led to a major reduction in human activity during the past thirty years. Here, the concentration of BC in the urban, urban‐industry, suburb, and rural areas of a megacity Hangzhou were monitored using a multi‐wavelength Aethalometer to estimate the impact of the COVID‐19 lockdown on BC emissions. The citywide BC decreased by 44% from 2.30 μg/m3 to 1.29 μg/m3 following the COVID‐19 lockdown period. The source apportionment based on the Aethalometer model shows that vehicle emission reduction responded to BC decline in the urban area and biomass burning in rural areas around the megacity had a regional contribution of BC. We highlight that the emission controls of vehicles in urban areas and biomass burning in rural areas should be more efficient in reducing BC in the megacity Hangzhou. |
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/304361 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Liang Xu,Jian Zhang,Xin Sun,等. Variation in concentration and sources of black carbon in a megacity of China during the COVID‐19 pandemic[J]. Geophysical Research Letters,2020. |
APA | Liang Xu.,Jian Zhang.,Xin Sun.,Shengchen Xu.,Meng Shan.,...&Weijun Li.(2020).Variation in concentration and sources of black carbon in a megacity of China during the COVID‐19 pandemic.Geophysical Research Letters. |
MLA | Liang Xu,et al."Variation in concentration and sources of black carbon in a megacity of China during the COVID‐19 pandemic".Geophysical Research Letters (2020). |
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