干旱区生态环境知识资源中心(Arid): Multiple isotopic tracing for sulfate and base cation sources of precipitation in Hangzhou city, Southeast China: Insights for rainwater acidification mechanism

Arid

DOI	10.1016/j.envpol.2021.117770
	Multiple isotopic tracing for sulfate and base cation sources of precipitation in Hangzhou city, Southeast China: Insights for rainwater acidification mechanism
	Wu, Yao; Liu, Wenjing; Xu, Yifu; Xu, Zhifang; Zhou, Xiaode; Zhou, Lian
通讯作者	Liu, WJ (corresponding author), Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China.
来源期刊	ENVIRONMENTAL POLLUTION
ISSN	0269-7491
EISSN	1873-6424
出版年	2021
卷号	288
英文摘要	Acid deposition has been regarded as a serious factor in the deteriorative water environment and ecosystems. Despite the powerful acid emission control measures have been implemented by the Chinese government, many areas (especially Southeast China) are still suffering from acid deposition. The chemical and isotopic (delta S-34 and Sr-87/ Sr-86) compositions of rainwater in Hangzhou, a typical megacity in Southeast China with serious acid rain problem, for one year were studied with the aim to better constrain potential sources and explore the causes of rainwater acidification. Most rainwater samples were acidic, with a VWM pH value of 4.65. SO42- was the dominant anion and the main acid ion in rainwater. Sulfur isotope and the quantity equilibrium model revealed that sea salt, crustal, biogenic, and anthropogenic sulfur represented 2.3%, 0.1%, 16.7%, and 80.8% of the SO42- source in rainwater, respectively. The back trajectory and strontium isotopes indicated that the base cations (BCs) in rainwater originated mainly from anthropogenic sources. The relatively low neutralizing capacity caused by limited BCs input and emission control measures undermines some efforts to reduce rainwater acidity. This case study demonstrated that a valuable tool to probe the source of acid rain and unravel the mechanism of rainwater acidification can be provided by multiple lines of evidence, including rainwater chemical compositions, stable sulfur isotopes, and stable strontium isotopes.
英文关键词	Acid deposition Source identification Stable isotope Neutralizing capacity
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000697049300007
WOS关键词	ATMOSPHERIC ACID DEPOSITION ; CHEMICAL-COMPOSITION ; STRONTIUM ISOTOPE ; SULFUR ISOTOPE ; INORGANIC-IONS ; WET DEPOSITION ; DESERT PLATEAU ; SR ; CHEMISTRY ; PROVINCE
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
来源机构	中国科学院地质与地球物理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363137
作者单位	[Wu, Yao] Chinese Acad Sci, Northeast Inst Geog & Agroecol, Changchun 130102, Peoples R China; [Liu, Wenjing; Xu, Yifu; Xu, Zhifang; Zhou, Xiaode] Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China; [Liu, Wenjing; Xu, Zhifang] Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Beijing 100044, Peoples R China; [Wu, Yao; Liu, Wenjing; Xu, Yifu; Xu, Zhifang; Zhou, Xiaode] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Zhou, Lian] China Univ Geosci, State Key Lab Geol Processes & Mineral Resources, Wuhan 430074, Peoples R China
推荐引用方式 GB/T 7714	Wu, Yao,Liu, Wenjing,Xu, Yifu,et al. Multiple isotopic tracing for sulfate and base cation sources of precipitation in Hangzhou city, Southeast China: Insights for rainwater acidification mechanism[J]. 中国科学院地质与地球物理研究所,2021,288.
APA	Wu, Yao,Liu, Wenjing,Xu, Yifu,Xu, Zhifang,Zhou, Xiaode,&Zhou, Lian.(2021).Multiple isotopic tracing for sulfate and base cation sources of precipitation in Hangzhou city, Southeast China: Insights for rainwater acidification mechanism.ENVIRONMENTAL POLLUTION,288.
MLA	Wu, Yao,et al."Multiple isotopic tracing for sulfate and base cation sources of precipitation in Hangzhou city, Southeast China: Insights for rainwater acidification mechanism".ENVIRONMENTAL POLLUTION 288(2021).