Aerosol-photolysis interaction reduces particulate matter during wintertime haze events

doi:10.1073/pnas.1916775117

IEECAS OpenIR > 粉尘与环境研究室

	Aerosol-photolysis interaction reduces particulate matter during wintertime haze events
	Wu, Jiarui 1,2; Bei, Naifang 3; Hu, Bo 4; Liu, Suixin 1,2; Wang, Yuan 5; Shen, Zhenxing 2; Li, Xia 1,2; Liu, Lang 1,2; Wang, Ruonan 1,2; Liu, Zirui 4; Cao, Junji 1,2; Tie, Xuexi 1; Molina, Luisa T.6; Li, Guohui 1,2
通讯作者	Li, Guohui(ligh@ieecas.cn)
	2020-05-05
发表期刊	PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
ISSN	0027-8424
卷号	117 期号:18 页码:9755-9761
摘要	Aerosol-radiation interaction (ARI) plays a significant role in the accumulation of fine particulate matter (PM2.5) by stabilizing the planetary boundary layer and thus deteriorating air quality during haze events. However, modification of photolysis by aerosol scattering or absorbing solar radiation (aerosol-photolysis interaction or API) alters the atmospheric oxidizing capacity, decreases the rate of secondary aerosol formation, and ultimately alleviates the ARI effect on PM2.5 pollution. Therefore, the synergetic effect of both ARI and API can either aggravate or even mitigate PM2.5 pollution. To test the effect, a fully coupled Weather Research and Forecasting (WRF)-Chem model has been used to simulate a heavy haze episode in North China Plain. Our results show that ARI contributes to a 7.8% increase in near-surface PM2.5. However, API suppresses secondary aerosol formation, and the combination of ARI and API results in only 4.8% net increase of PM2.5. Additionally, API increases the solar radiation reaching the surface and perturbs aerosol nucleation and activation to form cloud condensation nuclei, influencing aerosol-cloud interaction. The results suggest that API reduces PM2.5 pollution during haze events, but adds uncertainties in climate prediction.
关键词	particulate pollution aerosol-radiation interaction aerosol-photolysis interaction
DOI	10.1073/pnas.1916775117
关键词[WOS]	TIANJIN-HEBEI BTH ; MEXICO-CITY ; OPTICAL-PROPERTIES ; BLACK CARBON ; BROWN CARBON ; HONO SOURCES ; CHINA ; POLLUTION ; RADIATION ; EMISSIONS
收录类别	SCI ; SCI
语种	英语
资助项目	National Key RD Plan[2017YFC0210000] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB40030200] ; National Research Program for Key Issues in Air Pollution Control[DQGG0105] ; NSF[1560494]
WOS研究方向	Science & Technology - Other Topics
项目资助者	National Key RD Plan ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Research Program for Key Issues in Air Pollution Control ; NSF
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000531067600023
出版者	NATL ACAD SCIENCES
引用统计	被引频次：57[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/14749
专题	粉尘与环境研究室第四纪科学与全球变化卓越创新中心
通讯作者	Li, Guohui
作者单位	1.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710061, Shaanxi, Peoples R China 2.Chinese Acad Sci, Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Shaanxi, Peoples R China 3.Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Xian 710049, Shaanxi, Peoples R China 4.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atm, Beijing 100029, Peoples R China 5.CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA 6.Molina Ctr Energy & Environm, La Jolla, CA 92037 USA
推荐引用方式 GB/T 7714	Wu, Jiarui,Bei, Naifang,Hu, Bo,et al. Aerosol-photolysis interaction reduces particulate matter during wintertime haze events[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2020,117(18):9755-9761.
APA	Wu, Jiarui.,Bei, Naifang.,Hu, Bo.,Liu, Suixin.,Wang, Yuan.,...&Li, Guohui.(2020).Aerosol-photolysis interaction reduces particulate matter during wintertime haze events.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,117(18),9755-9761.
MLA	Wu, Jiarui,et al."Aerosol-photolysis interaction reduces particulate matter during wintertime haze events".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 117.18(2020):9755-9761.