Chemical Characteristics of Precipitation in a Typical Urban Site of the Hinterland in Three Gorges Reservoir, China

doi:10.1155/2018/2914313

CORC > 重庆绿色智能技术研究院 > 中国科学院重庆绿色智能技术研究院 > 大气环境研究中心

	Chemical Characteristics of Precipitation in a Typical Urban Site of the Hinterland in Three Gorges Reservoir, China
	Zhang, Liuyi 1,2,3; Qiao, Baoqing 1,2; Wang, Huanbo 1; Tian, Mi 1; Cui, Jian 1,3; Fu, Chuan 3; Huang, Yimin 3; Yang, Fumo1,2,3,4
刊名	JOURNAL OF CHEMISTRY
	2018
页码	10
ISSN号	2090-9063
DOI	10.1155/2018/2914313
英文摘要	Major water-soluble ions were analyzed for two-year precipitation samples in Wanzhou, a typical urban site of the hinterland of Chinese Three Gorges Reservoir. The pH values of the precipitation were in the range of 4.0 to 8.3, and the volume-weighted mean (VWM) value was 5.0. The concentration order of anions and cations was as follows: SO42- > NO3- > Cl- > F- and NH4+ > Ca-2(+) > Na+ > K+ > Mg2+, respectively. Good correlations were found between SO42- and NH4+, SO42- and Ca2+, NO3- and NH4+, and NO3- and Ca2+, implying their co-occurrence in the precipitation, most likely as (NH4)(2)SO4, (NH4)HSO4, NH4NO3, CaSO4, and Ca(NO3)(2). The sum of all measured ions was 416.4 mu eq L-1, indicating serious air pollution in Wanzhou. NH4+ and Ca2+ were the most important ions neutralizing the acidic compounds in the precipitation; their major sources included agricultural activity and crustal dust. Local anthropogenic activities, for example, coal burning and traffic related sources, contributed most of SO42- and NO3-. The equivalent concentration ratio of SO42-/NO3- was 4.5, indicating that excessive emission of sulfur was the main reason leading to the precipitation acidity in Wanzhou. However, this ratio was lower than the ratio (5.9) in 2000s in Wanzhou, indicating that the contribution of nitric acid to the acidity of precipitation was strengthening.
资助项目	West Action Plan of the Chinese Academy of Science[KZCX2-XB3-14] ; National Natural Science Foundation of China[31670467] ; Science and Technology Commission of Chongqing Projects[cstc2015jcyjB0332] ; Science and Technology Commission of Chongqing Projects[cstckjcxljrc13] ; Wanzhou Project[wzstc-042017105] ; Chongqing Municipality Education Commission[KJ1501006] ; open fund of CAS Key Laboratory from Reservoir Aquatic Environment
WOS研究方向	Chemistry
语种	英语
出版者	HINDAWI LTD
WOS记录号	WOS:000428902100001
内容类型	期刊论文
源URL	[http://119.78.100.138/handle/2HOD01W0/6281]
专题	大气环境研究中心
通讯作者	Yang, Fumo
作者单位	1.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, CAS Key Lab Reservoir Environm, Chongqing 400714, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chongqing Three Gorges Univ, Key Lab Water Environm Evolut & Pollut Control Th, Wanzhou 404100, Peoples R China 4.Chinese Acad Sci, Inst Urban Environm, CAS Ctr Excellence Reg Atmospher Environm, Xiamen 361021, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Liuyi,Qiao, Baoqing,Wang, Huanbo,et al. Chemical Characteristics of Precipitation in a Typical Urban Site of the Hinterland in Three Gorges Reservoir, China[J]. JOURNAL OF CHEMISTRY,2018:10.
APA	Zhang, Liuyi.,Qiao, Baoqing.,Wang, Huanbo.,Tian, Mi.,Cui, Jian.,...&Yang, Fumo.(2018).Chemical Characteristics of Precipitation in a Typical Urban Site of the Hinterland in Three Gorges Reservoir, China.JOURNAL OF CHEMISTRY,10.
MLA	Zhang, Liuyi,et al."Chemical Characteristics of Precipitation in a Typical Urban Site of the Hinterland in Three Gorges Reservoir, China".JOURNAL OF CHEMISTRY (2018):10.