Enrichment and Sources of Nitrogen in Groundwater in the Turpan-Hami Area, Northwestern China

Jiang, Wenjuan; Wang, Guangcai; Sheng, Yizhi; Zhao, Dan; Liu, Chenglong; Guo, Yonghai

doi:10.1007/s12403-016-0209-7

Cited by 20 publications

(14 citation statements)

References 44 publications

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“…This is because; halides such as Cl − are conservative and widely distributed in natural waters. This characteristic of Cl − has made it an ideal tracer of atmospheric precipitation (Jiang et al, 2016). Hence, provides a good indicator of sewage impact when plotted against NO 3 because it has minimal interaction with the surrounding substrate.…”

Section: Origin Of Nitrate Using Hydrochemistrymentioning

confidence: 99%

“…A high positive correlation between NO 3 − and Cl − is a diagnostic indicator of anthropogenic activities mainly from organic manure (Demlie et al, 2007;Ako et al, 2013). The ratio of NO 3 − /Cl method can also be used to distinguish the effect of NO 3 − removal processes (dilution and denitrification) and standardize the influence of evapo-transpiration to discriminate NO 3 − from atmospheric precipitation and other sources (Jiang et al, 2016;Gates and Bohlke, 2008;Liu et al, 2006). Due to the absence of reference value of NO 3 − /Cl − in the study area, the reference value of 0.05-0.22 without human activities reported in North-Western region of China was adopted and used (Ma et al, 2009;Li, 2014).…”

Section: Origin Of Nitrate Using Hydrochemistrymentioning

confidence: 99%

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Tracking nitrate sources in groundwater and associated health risk for rural communities in the White Volta River basin of Ghana using isotopic approach (δ15N, δ18O NO3 and 3H)

Anornu

Gibrilla

Adomako

2017

Science of The Total Environment

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Section: Origin Of Nitrate Using Hydrochemistrymentioning

confidence: 99%

Section: Origin Of Nitrate Using Hydrochemistrymentioning

confidence: 99%

Tracking nitrate sources in groundwater and associated health risk for rural communities in the White Volta River basin of Ghana using isotopic approach (δ15N, δ18O NO3 and 3H)

Anornu

Gibrilla

Adomako

2017

Science of The Total Environment

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“…Denitrification may drive the values of δ 15 N from +6 to +25‰ [50]. Because denitrification also causes the fractionation of oxygen-stable isotopes in NO − 3 , both the δ 15 N and δ 18 O values of the residual NO − 3 will increase at a ratio of 1.3:1 to 2:1 (Figure 3) [48,53] and, thus, produce a slope of about 0.5.…”

Section: Application Of δ 15 N and δ 18 O To Identify Nitrate Polluti...mentioning

confidence: 99%

A Review on the Application of Isotopic Techniques to Trace Groundwater Pollution Sources within Developing Countries

Sankoh

Derkyi

Frazer-Williams

et al. 2021

Water

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Owing to a lack of efficient solid waste management (SWM) systems, groundwater in most developing countries is found to be contaminated and tends to pose significant environmental health risks. This review paper proffers guidelines on the application of isotopic techniques to trace groundwater pollution sources from data spanning from 2010 to 2020 within developing countries. Earlier groundwater studies in those countries were mainly focused on using hydrochemical and geophysical techniques. The limitation of these techniques is that they can only monitor the concentration of pollutants in the water bodies and possible leachate infiltration but cannot determine the specific sources of the pollution. Stable isotopes of δ18O, δ2H and δ13C can confirm leachate migration to water bodies due to methanogenesis. The high tritium in landfill leachates is useful to identify leachate percolation in groundwater. The δ15N technique has been used to distinguish between synthetic and organic nitrogen sources but its application is limited to differentiating between atmospheric vs. inorganic nitrogen sources. The use of a dual isotope of δ15N–NO3− and δ18O–NO3− is beneficial in terms of identifying various sources of nitrogen such as atmospheric and inorganic fertilizers but is yet to be used to differentiate between nitrogen pollution sources from dumpsites, sewage and animal manure. The coupling of the 11B isotope with δ15N–NO3− and δ18O–NO3− and other hydrochemical parameters has proven to be effective in distinguishing between nitrate fertilizer, animal manure, seawater contamination and sewage. Therefore, in areas affected by agricultural activities, landfill leachates, domestic or sewage effluent and seawater intrusion, it is incumbent to couple hydrochemical (Cl−, NO3−, B, DO) and isotope techniques (δ18O, 2H, δ13C, δ18O–NO3−, δ15N–NO3−, δ11B and 3H) to effectively determine pollution sources of groundwater in developing countries. The foregoing review will provide guidelines for studies that may aim to critically distinguish between seawater intrusion, dumpsites, sewage and septic leachates.

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“…Budgets for both basic and applied research are needed, as both are crucial for advancing groundwater quality research. Furthermore, local water pricing policy and wastewater reuse are good tools for groundwater resources management and protection (Easter and Huang 2014;Robins and Fergusson 2014), benefiting both humans and the environment. However, water pricing and wastewater reuse policies are currently lacking or are imperfect in many western…”

Section: Paths Forwardmentioning

confidence: 99%

“…In this special issue, several papers report that nitrogen pollution is solely or partially induced by agricultural activities (e.g., Wu and Sun 2015;Li et al 2016c;Chen et al 2016b). Different from previous studies, Jiang et al (2016) used isotopic signatures to determine that nitrate in groundwater may also be derived from atmospheric precipitation. Further, soil column experiments show that nitrite transport in shallow sedimentary aquifers of northwest China is influenced by factors such as flow velocity, temperature, and pH (Dou et al 2016a).…”

Section: Final Remarksmentioning

confidence: 99%

Groundwater Quality in Western China: Challenges and Paths Forward for Groundwater Quality Research in Western China

2016

Expo Health

140

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Groundwater quality issues are becoming as important as groundwater quantity issues, making groundwater quality research a hot topic worldwide. With human activity intensifying in western China as a result of the West Development Program and the Silk Road economic belt project of China, groundwater quality in western China is deteriorating rapidly. This special issue of Exposure and Health promotes groundwater quality research to respond to these challenges. This introductory article details the challenges faced by contemporary groundwater quality researchers, and proposes ways to advance groundwater quality research in western China. The paper also introduces the articles that follow in this special issue. The key goal of this work is to encourage new and experienced scholars to engage with this field.

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Enrichment and Sources of Nitrogen in Groundwater in the Turpan-Hami Area, Northwestern China

Cited by 20 publications

References 44 publications

Tracking nitrate sources in groundwater and associated health risk for rural communities in the White Volta River basin of Ghana using isotopic approach (δ15N, δ18O NO3 and 3H)

Tracking nitrate sources in groundwater and associated health risk for rural communities in the White Volta River basin of Ghana using isotopic approach (δ15N, δ18O NO3 and 3H)

A Review on the Application of Isotopic Techniques to Trace Groundwater Pollution Sources within Developing Countries

Groundwater Quality in Western China: Challenges and Paths Forward for Groundwater Quality Research in Western China

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