Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021GL095560 |
Measurements of Volatile Organic Compounds during the COVID-19 Lockdown in Changzhou, China | |
Andrew Jensen; Zhiqiang Liu; Wen Tan; Barbara Dix; Tianshu Chen; Abigail Koss; Liang Zhu; Li Li; Joost de Gouw | |
2021-10-04 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2021 |
英文摘要 | The COVID-19 outbreak in 2020 prompted strict lockdowns, reduced human activity, and reduced emissions of air pollutants. We measured volatile organic compounds (VOCs) using a proton-transfer-reaction mass spectrometry instrument in Changzhou, China from 8 January through 27 March, including periods of pre-lockdown, strict measures (level 1), and more relaxed measures (level 2). We analyze the data using positive matrix factorization and resolve four factors: textile industrial emissions (62±10% average reduction during level 1 relative to pre-lockdown), pharmaceutical industrial emissions (40±20%), traffic emissions (71±10%), and secondary chemistry (20±20%). The two industrial sources showed different responses to the lockdown, so emissions from the industrial sector should not be scaled uniformly. The quantified changes in VOCs due to the lockdowns constrain emission inventories and inform chemistry-transport models, particularly for sectors where activity data are sparse, as the effects of lockdowns on air quality are explored. |
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/339996 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Andrew Jensen,Zhiqiang Liu,Wen Tan,et al. Measurements of Volatile Organic Compounds during the COVID-19 Lockdown in Changzhou, China[J]. Geophysical Research Letters,2021. |
APA | Andrew Jensen.,Zhiqiang Liu.,Wen Tan.,Barbara Dix.,Tianshu Chen.,...&Joost de Gouw.(2021).Measurements of Volatile Organic Compounds during the COVID-19 Lockdown in Changzhou, China.Geophysical Research Letters. |
MLA | Andrew Jensen,et al."Measurements of Volatile Organic Compounds during the COVID-19 Lockdown in Changzhou, China".Geophysical Research Letters (2021). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论