气候变化领域集成服务门户(CCPortal): Trans-Regional Transport of Haze Particles From the North China Plain to Yangtze River Delta During Winter

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DOI	10.1029/2020JD033778
	Trans-Regional Transport of Haze Particles From the North China Plain to Yangtze River Delta During Winter
	Zhang J.; Yuan Q.; Liu L.; Wang Y.; Zhang Y.; Xu L.; Pang Y.; Zhu Y.; Niu H.; Shao L.; Yang S.; Liu H.; Pan X.; Shi Z.; Hu M.; Fu P.; Li W.
发表日期	2021
ISSN	2169897X
卷号	126 期号:8
英文摘要	According to atmospheric modeling and satellite observations, cold fronts can cause trans-regional transport (TRT) of haze particles from the North China Plain (NCP) to Yangtze River Delta (YRD) in winter. However, compositions and aging of haze aerosols during the TRT have not been studied. We showed the TRT PM2.5 dominated by organic matter (OM) (30%) and secondary inorganic ions (36%) in the NCP and 29% and 60% in the YRD. Following the TRT, abundant spherical primary OM particles (i.e., tarballs) (71% by number) mainly from residential coal burning in rural areas of the NCP unexpectedly occurred in the YRD. The inert tarballs display similar sizes (∼300 nm) and O/C ratios (∼0.15), but the mixture of nitrate, sulfate, and secondary OM as the coatings completely convert the hydrophobic tarballs into hydrophilic ones in the TRT. The aging and transport of tarballs from the NCP to YRD further indicate that the TRT not only brought various trace gases (e.g., CO, SO2, NOx, and VOCs) but also carried large numbers of nanosized primary particles (e.g., tarball, metal, fly ash, and soot) with secondary coatings over 1,000 km. The findings suggest that these many nanosized tarballs containing brown carbon and highly toxic species in the NCP influence regional climate and human health in northern and eastern China, which needs more attention. Although the NCP and YRD have different energy consumption structures in winter and are two isolated administrative regions, we emphasize the need for a coordinated cross-regional emission reduction strategy for TRT haze control. © 2021. American Geophysical Union. All Rights Reserved.
英文关键词	aging processes; cross-regional emission reduction; haze particles; primary brown carbon; tarballs; trans-regional transport
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185315
作者单位	Department of Atmospheric Sciences, School of Earth Sciences, Zhejiang University, Hangzhou, China; Key Laboratory of Resource Exploration Research of Hebei Province, Hebei University of Engineering, Handan, China; State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Beijing, China; School of Energy and Environment, Zhongyuan University of Technology, Zhengzhou, China; State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; School of Geography, Earth and Environmental Sciences, University of Birmingham, Birmingham, United Kingdom; State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, China; Institute of Surface-Earth System Science, School of Earth System Science, Tianjin University, Tianjin, China
推荐引用方式 GB/T 7714	Zhang J.,Yuan Q.,Liu L.,et al. Trans-Regional Transport of Haze Particles From the North China Plain to Yangtze River Delta During Winter[J],2021,126(8).
APA	Zhang J..,Yuan Q..,Liu L..,Wang Y..,Zhang Y..,...&Li W..(2021).Trans-Regional Transport of Haze Particles From the North China Plain to Yangtze River Delta During Winter.Journal of Geophysical Research: Atmospheres,126(8).
MLA	Zhang J.,et al."Trans-Regional Transport of Haze Particles From the North China Plain to Yangtze River Delta During Winter".Journal of Geophysical Research: Atmospheres 126.8(2021).