干旱区生态环境知识资源中心(Arid): Phosphorus solubility in aerosol particles related to particle sources and atmospheric acidification in Asian continental outflow

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DOI	10.5194/acp-19-847-2019
	Phosphorus solubility in aerosol particles related to particle sources and atmospheric acidification in Asian continental outflow
	Shi, Jinhui 1,2; Wang, Nan 1; Gao, Huiwang 1,2; Baker, Alex R.3; Yao, Xiaohong 1,2; Zhang, Daizhou 4
通讯作者	Shi, Jinhui
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
ISSN	1680-7316
EISSN	1680-7324
出版年	2019
卷号	19 期号:2 页码:847-860
英文摘要	The continent-to-ocean supply of phosphorus (P) in the soluble state, recognized as bioavailable P, via the atmosphere is hypothesized to be crucial to the biological cycle in offshore surface seawater. To investigate the solubility of P in aerosol particles moving towards the northwestern Pacific from the Asian continent, we measured the total P (TP), total dissolved P (TDP) and dissolved inorganic P (DIP) in aerosols at Qingdao (36 degrees 06' N, 120 degrees 33' E), a coastal city in eastern China. The samples were collected in December 2012 and January 2013 (winter) and in March and April 2013 (spring), when the middle-latitude westerly wind was prevailing. On average, P solubility, i.e., the ratio of TDP to TP, was 32.9 +/- 16.7% in winter and 21.3 +/- 9.8% in spring, and the TP concentrations in the two seasons were similar. This seasonal solubility difference is attributed to the aerosol sources containing the P. Particles in winter were predominantly anthropogenic particles from local and regional areas, and particles in spring were significantly influenced by natural dust from the arid and semiarid areas in the inland part of the continent. Moreover, acidification processes associated with the formation of sulfate and nitrate in the winter samples enhanced P solubility, suggesting that the P in anthropogenic particles was more susceptible to the production of acidic species than that in natural dust particles. There was a strong positive correlation between P solubility and relative humidity (RH). P solubility was usually less than 30% when RH was below 60%, even when the content of acidic species and/or anthropogenic particles in the aerosols was high, suggesting humidity had a critical role in the production of TDP. In addition, the proportion of DIP in TDP was high when the particles were predominantly anthropogenic, and the proportion of dissolved organic P (DOP; quantified as TDP minus DIP) in TDP was high when the particles were dominated by natural dust. These results indicate that, as the contents of bioavailable P in Asian continent outflows are closely dependent on the aerosol particle origins, atmospheric acidic processes could convert P into a bioavailable state under certain meteorological conditions. Therefore, the recent severe air pollution over East Asia might have enhanced the input of bioavailable P to downwind marine areas.
类型	Article
语种	英语
国家	Peoples R China ; England ; Japan
开放获取类型	gold, Green Accepted, Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000456317400006
WOS关键词	BIOAVAILABLE PHOSPHORUS ; NORTH PACIFIC ; DEPOSITION FLUX ; DUST STORM ; NITROGEN ; CHINA ; OCEAN ; IRON ; VIABILITY ; NUTRIENTS
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/214462
作者单位	1.Ocean Univ China, Key Lab Marine Environm Sci & Ecol, Minist Educ China, Qingdao 266010, Peoples R China; 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao 266237, Peoples R China; 3.Univ East Anglia, Sch Environm Sci, Ctr Ocean & Atmospher Sci, Norwich NR4 7TJ, Norfolk, England; 4.Prefectural Kumamoto Univ, Fac Environm & Symbiot Sci, Kumamoto 8628502, Japan
推荐引用方式 GB/T 7714	Shi, Jinhui,Wang, Nan,Gao, Huiwang,et al. Phosphorus solubility in aerosol particles related to particle sources and atmospheric acidification in Asian continental outflow[J],2019,19(2):847-860.
APA	Shi, Jinhui,Wang, Nan,Gao, Huiwang,Baker, Alex R.,Yao, Xiaohong,&Zhang, Daizhou.(2019).Phosphorus solubility in aerosol particles related to particle sources and atmospheric acidification in Asian continental outflow.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(2),847-860.
MLA	Shi, Jinhui,et al."Phosphorus solubility in aerosol particles related to particle sources and atmospheric acidification in Asian continental outflow".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.2(2019):847-860.