Chemical composition and source apportionment of rainwater at Guiyang, SW China

CORC > 南海海洋研究所 > 中国科学院南海海洋研究所 > 热带海洋环境国家重点实验室(LTO)

	Chemical composition and source apportionment of rainwater at Guiyang, SW China
	[Xiao, Hong-Wei ; Long, Ai-Min] Chinese Acad Sci, State Key Lab Trop Oceanog, South China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China ; [Xiao, Hua-Yun ; Liu, Cong-Qiang] Chinese Acad Sci, State Key Lab Environm Geochem, Inst Geochem, Guiyang 550002, Peoples R China ; [Wang, Yan-Li] Chinese Res Inst Environm Sci, Beijing 100012, Peoples R China
刊名	JOURNAL OF ATMOSPHERIC CHEMISTRY
	2013
卷号	70 期号:3 页码:269-281
关键词	Rainwater Chemical composition Anthropogenic source Source contribution
ISSN号	0167-7764
通讯作者	xiaohw@scsio.ac.cn ; xiaohuayun@vip.skleg.cn
中文摘要	This study systematically analyzed the concentrations of cations and anions and determined the pH in the rainwater at Guiyang from Oct. 2008 to Sep. 2009. The pH in the rainwater varied between 3.35 and 9.99 with a volume-weighted mean value of 4.23. The volume-weighted mean concentrations of anions followed the order SO4 (2-)> Cl-> F-> NO3 (-), whereas the volume-weighted mean concentrations of cations followed the order Ca2+> NH4 (+)> Na+> Mg2+> K+. This finding indicates that SO4 (2-) was the main anion and that Ca2+ and NH4 (+) were the main cations. Significant correlations between each pair of ions (SO4 (2-), NO3 (-), NH4 (+), Ca2+, and Mg2+) were observed, suggesting that CaSO4, Ca(NO3)(2), MgSO4, Mg(NO3)(2), NH4NO3, (NH4)(2)SO4, and/or NH4HSO4 exist in the atmosphere at Guiyang. The soil-derived species (such as Ca2+) played an important role in the neutralization of the acidity in rainwater. The SO4 (2-) and NO3 (-) in the rainwater were mainly from anthropogenic sources, and their contributions accounted for 98.1 % and 94.7 %, respectively. NH4 (+) was also most likely derived from anthropogenic sources, such as domestic and commercial sewage, and played an important role in the neutralization of the rainwater at Guiyang.
学科主题	Environmental Sciences ; Meteorology & Atmospheric Sciences
资助信息	This study work was kindly supported by the National Natural Science Foundation of China through Grants 41203015(H.-W. Xiao), 41273027, 41173027 (H.-Y. Xiao) and 40721002 (C.-Q. Liu).
原文出处	SPRINGER
语种	英语
WOS记录号	WOS:000325246900004
公开日期	2015-01-14
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/10884]
专题	南海海洋研究所_热带海洋环境国家重点实验室(LTO)
推荐引用方式 GB/T 7714	[Xiao, Hong-Wei,Long, Ai-Min] Chinese Acad Sci, State Key Lab Trop Oceanog, South China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China,[Xiao, Hua-Yun,et al. Chemical composition and source apportionment of rainwater at Guiyang, SW China[J]. JOURNAL OF ATMOSPHERIC CHEMISTRY,2013,70(3):269-281.
APA	[Xiao, Hong-Wei,Long, Ai-Min] Chinese Acad Sci, State Key Lab Trop Oceanog, South China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China,[Xiao, Hua-Yun,Liu, Cong-Qiang] Chinese Acad Sci, State Key Lab Environm Geochem, Inst Geochem, Guiyang 550002, Peoples R China,&[Wang, Yan-Li] Chinese Res Inst Environm Sci, Beijing 100012, Peoples R China.(2013).Chemical composition and source apportionment of rainwater at Guiyang, SW China.JOURNAL OF ATMOSPHERIC CHEMISTRY,70(3),269-281.
MLA	[Xiao, Hong-Wei,et al."Chemical composition and source apportionment of rainwater at Guiyang, SW China".JOURNAL OF ATMOSPHERIC CHEMISTRY 70.3(2013):269-281.