气候变化领域集成服务门户(CCPortal): Seasonal variation of aerosol iron solubility in coarse and fine particlesat an inland city in northwestern China

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DOI	10.5194/acp-23-3543-2023
	Seasonal variation of aerosol iron solubility in coarse and fine particlesat an inland city in northwestern China
	Zhang, Huanhuan; Li, Rui; Huang, Chengpeng; Li, Xiaofei; Dong, Shuwei; Wang, Fu; Li, Tingting; Chen, Yizhu; Zhang, Guohua; Ren, Yan; Chen, Qingcai; Huang, Ru-jin; Chen, Siyu; Xue, Tao; Wang, Xinming; Tang, Mingjin
发表日期	2023
ISSN	1680-7316
EISSN	1680-7324
起始页码	3543
结束页码	3559
卷号	23 期号:6 页码:17
英文摘要	This work investigated seasonal variation of aerosol iron (Fe) solubility for coarse (> 1 mu m) and fine (< 1 mu m) particles at Xi'an, a megacity in northwestern China impacted by anthropogenic emission and desert dust. Total Fe concentrations were lowest in summer and were similar in other seasons for coarse particles but lowest in summer and highest in spring for fine particles; for comparison, dissolved Fe concentrations were higher in fall and winter than spring and summer for coarse particles but highest in winter and lowest in spring and summer for fine particles. Desert-dust aerosol was always the major source of total Fe for both coarse and fine particles in all four seasons, but it may not be the dominant source of dissolved Fe. Fe solubility was lowest in spring for both coarse and fine particles and highest in winter for coarse particles and in fall for fine particles. In general, aerosol Fe solubility was found to be higher in air masses originating from local and nearby regions than those arriving from desert regions after long-distance transport. Compared to coarse particles, Fe solubility was similar for fine particles in spring but significantly higher in the other three seasons, and at a given aerosol pH range, Fe solubility was always higher in fine particles. Aerosol Fe solubility was well correlated with relative abundance of aerosol acidic species, implying aerosol Fe solubility enhancement by acid processing; moreover, such correlations were better for coarse particles than fine particles in all four seasons. Fe solubility was found to increase with relative humidity and acid acidity for both coarse and fine particles at Xi'an, underscoring the importance of aerosol liquid water and aerosol acidity in regulating Fe solubility via chemical processing.
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000957302100001
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/273901
作者单位	Chinese Academy of Sciences; Guangzhou Institute of Geochemistry, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Shaanxi University of Science & Technology; Chinese Academy of Sciences; Institute of Earth Environment, CAS; Lanzhou University; Peking University
推荐引用方式 GB/T 7714	Zhang, Huanhuan,Li, Rui,Huang, Chengpeng,et al. Seasonal variation of aerosol iron solubility in coarse and fine particlesat an inland city in northwestern China[J],2023,23(6):17.
APA	Zhang, Huanhuan.,Li, Rui.,Huang, Chengpeng.,Li, Xiaofei.,Dong, Shuwei.,...&Tang, Mingjin.(2023).Seasonal variation of aerosol iron solubility in coarse and fine particlesat an inland city in northwestern China.ATMOSPHERIC CHEMISTRY AND PHYSICS,23(6),17.
MLA	Zhang, Huanhuan,et al."Seasonal variation of aerosol iron solubility in coarse and fine particlesat an inland city in northwestern China".ATMOSPHERIC CHEMISTRY AND PHYSICS 23.6(2023):17.