气候变化领域集成服务门户(CCPortal): Fine particle pH and its influencing factors during summer at Mt. Tai: Comparison between mountain and urban sites

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DOI	10.1016/j.atmosenv.2021.118607
	Fine particle pH and its influencing factors during summer at Mt. Tai: Comparison between mountain and urban sites
	Liu P.; Zhao X.; Zhang C.; Chen H.; Wang J.; Xue L.; Chen J.; Mu Y.
发表日期	2021
ISSN	1352-2310
卷号	261
英文摘要	Fine particle pH plays an important role in aerosol chemistry. Understanding of influencing factors and evolution process of fine particle pH is helpful to facilitate the improvement of air quality management strategies. Here, we performed simultaneously field measurement at Mt. Tai and the surrounding urban site during the summer of 2018, and analyzed comprehensively fine particle pH and its driving factors based on the sensitivity tests. The results indicated that ambient temperature (Temp), atmospheric relative humidity (RH), TNH3 (= NH4+ + NH3) and SO42− were the dominant factors for fine particle pH. The switch between RH-sensitive and Temp-sensitive regimes with variation of RH at the mountain site implied that fine particle pH was more sensitive to RH at Mt. Tai. Elevated TNH3 could not sufficiently raise fine particle pH to neutral at relatively high SO42− levels, whereas had a significant effect on fine particle pH when SO42− concentration was relatively low. Considering the current levels of TNH3 in summer of the North China Plain (NCP), fine particle pH was more sensitive to SO42− at present. However, the sensitive factor of fine particle pH in the future is expected to shift from SO42− to TNH3 with declining SO2 emissions and increasing NH3 emissions, leading in turn to the evident increase of fine particle pH. Elevated fine particle pH and abundant TNH3 may enhance secondary inorganic aerosol production, and thus effectively synergetic control of SO2 and NH3 is urgently needed to be considered in the NCP and even in other regions of China. © 2021 Elsevier Ltd
关键词	Ammonia emission Fine particle pH ISORROPIA-II Long-term evolution process Mt. Tai
语种	英语
scopus关键词	Aerosols; Air quality; Atmospheric humidity; Long Term Evolution (LTE); Quality management; Urban growth; Ammonia emissions; Fine particle ph; Fine-particles; ISORROPIA-II; Long-term evolution process; Mt. Tai; NH$-3$; North China Plain; SO$-4$/$+2-$; Urban site; Ammonia; ammonia; sulfate; sulfur dioxide; aerosol composition; air temperature; ambient air; comparative study; mountain region; particle size; relative humidity; sulfate; summer; urban area; air pollution; altitude; Article; atmosphere; chemical composition; circadian rhythm; comparative study; concentration (parameter); environmental impact; environmental temperature; fine particle ph; geographic and geological phenomena; mountain; north china plain; particulate matter; pH; relative humidity; secondary inorganic aerosol; sensitivity analysis; summer; temperature sensitivity; urban area; China; North China Plain; Shandong; Tai Shan
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248323
作者单位	Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; Center for Excellence in Urban Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Institute of Atmospheric Sciences, Fudan University, Shanghai, 200438, China; Resources and Environment Innovation Research Institute, School of Municipal and Environmental Engineering, Shandong Jianzhu University, Ji'nan, 250101, China; Environment Research Institute, School of Environmental Science and Engineering, Shandong University, Ji'nan, 250100, China
推荐引用方式 GB/T 7714	Liu P.,Zhao X.,Zhang C.,et al. Fine particle pH and its influencing factors during summer at Mt. Tai: Comparison between mountain and urban sites[J],2021,261.
APA	Liu P..,Zhao X..,Zhang C..,Chen H..,Wang J..,...&Mu Y..(2021).Fine particle pH and its influencing factors during summer at Mt. Tai: Comparison between mountain and urban sites.ATMOSPHERIC ENVIRONMENT,261.
MLA	Liu P.,et al."Fine particle pH and its influencing factors during summer at Mt. Tai: Comparison between mountain and urban sites".ATMOSPHERIC ENVIRONMENT 261(2021).