Evaluation of PM2.5 fluxes in the "2+26" cities: Transport pathways and intercity contributions

doi:10.1016/j.apr.2021.03.011

CORC > 地球环境研究所 > 中国科学院地球环境研究所 > 黄土与第四纪地质国家重点实验室（2010~）

	Evaluation of PM2.5 fluxes in the "2+26" cities: Transport pathways and intercity contributions
	Qi, Mengyao 1,2,3; Wang, Litao 1,2; Ma, Simeng 4; Zhao, Le 2; Lu, Xiaohan 1,2; Liu, Yingying 1,2; Zhang, Yu 1,2; Tan, Jingyao 1,2; Liu, Zhentong 1,2; Zhao, Shuting 1,2
刊名	ATMOSPHERIC POLLUTION RESEARCH
	2021-05-01
卷号	12 期号:5 页码:14
关键词	PM2.5 flux Regional transport "2+26" cities WRF-Chem
ISSN号	1309-1042
DOI	10.1016/j.apr.2021.03.011
通讯作者	Wang, Litao(wanglitao@hebeu.edu.cn)
英文摘要	To comprehensively evaluate the transport pathways and regional sources of PM2.5 in the "2 + 26" cities, air quality simulations using WRF-Chem were pursued over January, April, July, October 2015. The seasonal characteristics, vertical distributions of PM2.5 fluxes, and transport pathways were investigated. The model reasonably predicted the meteorological parameters (e.g., T2, Q2, WS10, and WD10) and air pollutants in both evaluated domains. The horizontal PM2.5 fluxes were strong in October (1221 kt, -1222 kt) and April (1119 kt, -1142 kt) and weak in January (933 kt, -997 kt) and July (589 kt, -809 kt). The directions of horizontal flux contributors relative to their target cities were entirely different in January and July. The same pattern can also be found at vertical layers. However, there was no uniform direction seen in April and October. A total of 14 pathways at the boundaries of the "2 + 26" cities were identified. The SW-NE pathways, which were dominant in Beijing and Tianjin with flux contributions of 65% and 75%, were found in all four months. The NW-SE pathways, which were the major pathways of Taiyuan (87%), and the W-E pathways, which were the major pathways of Zhengzhou (44%) and Jinan (43%), always showed different directions in January and July, following the directions of prevailing winter and summer monsoon winds. Moreover, Shijiazhuang (42%) and Handan (48%) were dominated by S-N pathways, which showed different patterns throughout the four months. The results could be helpful for implementing policies aimed at ecological compensation and joint air pollution control.
资助项目	National Natural Science Foundation of China[41475131] ; National Natural Science Foundation of China[41703088] ; National Key Program of Cause and Control of Severe Air Pollution[DQGG-05-09] ; National Key Program of Cause and Control of Severe Air Pollution[DQGG-01-07] ; National Key Program of Cause and Control of Severe Air Pollution[DQGG-02-09] ; National Key Program of Cause and Control of Severe Air Pollution[DQGG-03-04] ; Hebei Science Fund of Distinguished Young Scholars[D2017402086] ; Key Projects of Research and Development of Hebei Province[17273712D] ; Key Projects of Research and Development of Hebei Province[19273707D] ; Hebei Support Program of Hundred Outstanding Innovative Talents from Universities[SLRC2017025]
WOS关键词	TIANJIN-HEBEI REGION ; SOURCE APPORTIONMENT ; AIR-QUALITY ; PARTICULATE MATTER ; POLLUTION EPISODE ; SOUTHERN HEBEI ; MODEL ; CHINA ; OZONE ; EMISSION
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	TURKISH NATL COMMITTEE AIR POLLUTION RES & CONTROL-TUNCAP
WOS记录号	WOS:000663150900003
资助机构	National Natural Science Foundation of China ; National Key Program of Cause and Control of Severe Air Pollution ; Hebei Science Fund of Distinguished Young Scholars ; Key Projects of Research and Development of Hebei Province ; Hebei Support Program of Hundred Outstanding Innovative Talents from Universities
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/16795]
专题	地球环境研究所_黄土与第四纪地质国家重点实验室（2010~）
通讯作者	Wang, Litao
作者单位	1.Hebei Key Lab Air Pollut Cause & Impact, Handan 056038, Peoples R China 2.Hebei Univ Engn, Sch Energy & Environm Engn, Dept Environm Engn, Handan 056038, Peoples R China 3.Tianjin Citiloong Technol Dev Co Ltd, Tianjin 300112, Peoples R China 4.Nankai Univ, State Environm Protect Key Lab Urban Ambient Air, Coll Environm Sci & Engn, Tianjin 300071, Peoples R China 5.Chinese Acad Sci, Inst Earth Environm, Xian 710061, Peoples R China
推荐引用方式 GB/T 7714	Qi, Mengyao,Wang, Litao,Ma, Simeng,et al. Evaluation of PM2.5 fluxes in the "2+26" cities: Transport pathways and intercity contributions[J]. ATMOSPHERIC POLLUTION RESEARCH,2021,12(5):14.
APA	Qi, Mengyao.,Wang, Litao.,Ma, Simeng.,Zhao, Le.,Lu, Xiaohan.,...&Xu, Ruiguang.(2021).Evaluation of PM2.5 fluxes in the "2+26" cities: Transport pathways and intercity contributions.ATMOSPHERIC POLLUTION RESEARCH,12(5),14.
MLA	Qi, Mengyao,et al."Evaluation of PM2.5 fluxes in the "2+26" cities: Transport pathways and intercity contributions".ATMOSPHERIC POLLUTION RESEARCH 12.5(2021):14.