气候变化领域集成服务门户(CCPortal): Air quality and urban climate improvements in the world's most populated region during the COVID-19 pandemic

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DOI	10.1088/1748-9326/ad25a2
	Air quality and urban climate improvements in the world's most populated region during the COVID-19 pandemic
	Damiani, Alessandro; Irie, Hitoshi; Belikov, Dmitry; Cordero, Raul R.; Feron, Sarah; Ishizaki, Noriko N.
发表日期	2024
ISSN	1748-9326
起始页码	19
结束页码	3
卷号	19 期号:3
英文摘要	In this study, we assessed air quality (AQ) and urban climate during the mobility restrictions implemented in the Greater Tokyo Area, Japan, the world's most populated region, in response to the COVID-19 pandemic. Observations from dense surface networks were analyzed using an interpretable machine learning approach. In parallel with a similar to 50% reduction in mobility and an altered lifestyle of the population, we found limited reductions in nitrogen dioxide; decreases in fine particulate matter not entirely driven by local mobility; minor variations in ozone, with a positive (negative) tendency in areas with high (low) emissions; a decrease in air temperature consistent with mobility; and pollution levels and air temperature changes with well-defined, common spatiotemporal patterns. Specifically, cooling mainly occurred in urbanized areas with an improved AQ. Overall, although reductions in mobility were moderately effective in improving the typical indicators of urban AQ, including those known to negatively impact human health, the reductions in waste heat had a stronger impact on Tokyo's urban heat island, suggestive of a strategy to minimize exposure to heat stress. These findings can help guide urban planning strategies and policies aimed at addressing climate change.
英文关键词	air quality; urban climate; air temperature; COVID-19
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:001168953400001
来源期刊	ENVIRONMENTAL RESEARCH LETTERS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/294301
作者单位	National Institute for Environmental Studies - Japan; Chiba University; Universidad de Santiago de Chile; University of Groningen
推荐引用方式 GB/T 7714	Damiani, Alessandro,Irie, Hitoshi,Belikov, Dmitry,et al. Air quality and urban climate improvements in the world's most populated region during the COVID-19 pandemic[J],2024,19(3).
APA	Damiani, Alessandro,Irie, Hitoshi,Belikov, Dmitry,Cordero, Raul R.,Feron, Sarah,&Ishizaki, Noriko N..(2024).Air quality and urban climate improvements in the world's most populated region during the COVID-19 pandemic.ENVIRONMENTAL RESEARCH LETTERS,19(3).
MLA	Damiani, Alessandro,et al."Air quality and urban climate improvements in the world's most populated region during the COVID-19 pandemic".ENVIRONMENTAL RESEARCH LETTERS 19.3(2024).