气候变化领域集成服务门户(CCPortal): Anthropogenic warming degrades spring air quality in Northeast Asia by enhancing atmospheric stability and transboundary transport

CCPortal

DOI	10.1038/s41612-024-00603-7
	Anthropogenic warming degrades spring air quality in Northeast Asia by enhancing atmospheric stability and transboundary transport
	Ryu, Young-Hee; Min, Seung-Ki
发表日期	2024
ISSN	2397-3722
起始页码	7
结束页码	1
卷号	7 期号:1
英文摘要	Air pollutants can travel long distances from their sources, often causing severe particulate matter (PM) pollution in downwind regions. This transboundary pollution is largely influenced by meteorology and hence its changes associated with climate change. However, the effects of anthropogenic warming on transboundary pollution remain unclear. We show that springtime PM pollution can worsen with anthropogenic warming not only in the upwind region (northern China) but also in the downwind regions (South Korea and southern Japan). The worse air quality in northern China is attributed to a shallower boundary layer due to warmer air advection in the upper levels from high-latitude Eurasia and thus increased atmospheric stability. In the downwind regions, enhanced westerly/southwesterly anomalies induced by anthropogenic warming strengthen transboundary transport. The increase in primary aerosol concentrations due to the shallower boundary layer and/or enhanced transboundary transport is similar to 14% in northern China, similar to 13% in South Korea, and similar to 17% in southern Japan. The elevated relative humidity due to enhanced moisture transport by the wind anomalies promotes secondary aerosol formation, which further degrades the air quality in the downwind regions. The enhancement ratio of secondary aerosols relative to changes in primary aerosols is similar to 1 in northern China, similar to 1.12 in South Korea, and similar to 1.18 in southern Japan due to anthropogenic warming.
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:001177827400001
来源期刊	NPJ CLIMATE AND ATMOSPHERIC SCIENCE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/296518
作者单位	Yonsei University; Pohang University of Science & Technology (POSTECH); Yonsei University
推荐引用方式 GB/T 7714	Ryu, Young-Hee,Min, Seung-Ki. Anthropogenic warming degrades spring air quality in Northeast Asia by enhancing atmospheric stability and transboundary transport[J],2024,7(1).
APA	Ryu, Young-Hee,&Min, Seung-Ki.(2024).Anthropogenic warming degrades spring air quality in Northeast Asia by enhancing atmospheric stability and transboundary transport.NPJ CLIMATE AND ATMOSPHERIC SCIENCE,7(1).
MLA	Ryu, Young-Hee,et al."Anthropogenic warming degrades spring air quality in Northeast Asia by enhancing atmospheric stability and transboundary transport".NPJ CLIMATE AND ATMOSPHERIC SCIENCE 7.1(2024).