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Use of O-18, H-2 and N-15 to identify nitrate contamination of groundwater in a wastewater irrigated field near the city of Shijiazhuang, China
Chen, Jianyao; Tang, Changyuan; Yu, Jingjie
2006-07-15
Source PublicationJOURNAL OF HYDROLOGY
Volume326Issue:1-4Pages:367-378
AbstractWastewater irrigation was initiated as early as 1958 in the suburb of Shijiazhuang, China. This has resulted in groundwater becoming contaminated by nitrate to a depth of about 100 m with an average concentration of 40 mg NO3-/L. The annual average irrigation rate of wastewater in this area is about 430 mm, and the water table is relatively stable in contrast to the surrounding area, where no wastewater has been used. Although different in composition, wastewater and old groundwater are found to be well mixed based on the linearity of delta O-18 and Cl-. Wastewater has relatively high Cl-, but has no detectable nitrate. Dominance of delta N-15 in the range of 7-11 parts per thousand AIR (referred to atmospheric N-2 standard) confirms that the nitrate present in contaminated groundwater originates from the wastewater. Nitrate was then used as a tracer to estimate roughly groundwater movement rates, yielding a vertical rate of 2.0-2.5 m/y and a horizontal rate of 41.8-62.5 m/y. Denitrification could occur in a zone 2 km from the wastewater canal, in which the fraction contributed from wastewater was calculated to be 76%. Health concerns should be raised regarding wastewater. irrigation, which is a common practice in the suburbs of principal cities of China, especially in and and semi-arid regions. (c) 2005 Elsevier B.V. All rights reserved.
SubtypeArticle
KeywordNitrate Contamination Groundwater Wastewater Irrigation Stable Isotopes China
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
WOS Subject ExtendedEngineering ; Geology ; Water Resources
WOS KeywordPLAIN ; POLLUTION ; NITROGEN ; MANAGEMENT ; AQUIFER ; QUALITY ; IMPACT ; REGION ; SOIL
Indexed BySCI
Language英语
WOS SubjectEngineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS IDWOS:000238776800021
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:37[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/67908
Collection中国科学院地理科学与资源研究所
Corresponding AuthorChen, Jianyao
Affiliation1.Zhongshan Univ, Sch Geog Sci & Planning, Guangzhou 510275, Peoples R China
2.Chiba Univ, Grad Sch Sci & Technol, Chiba 2638522, Japan
3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
Recommended Citation
GB/T 7714
Chen, Jianyao,Tang, Changyuan,Yu, Jingjie. Use of O-18, H-2 and N-15 to identify nitrate contamination of groundwater in a wastewater irrigated field near the city of Shijiazhuang, China[J]. JOURNAL OF HYDROLOGY,2006,326(1-4):367-378.
APA Chen, Jianyao,Tang, Changyuan,&Yu, Jingjie.(2006).Use of O-18, H-2 and N-15 to identify nitrate contamination of groundwater in a wastewater irrigated field near the city of Shijiazhuang, China.JOURNAL OF HYDROLOGY,326(1-4),367-378.
MLA Chen, Jianyao,et al."Use of O-18, H-2 and N-15 to identify nitrate contamination of groundwater in a wastewater irrigated field near the city of Shijiazhuang, China".JOURNAL OF HYDROLOGY 326.1-4(2006):367-378.
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