Quantification of nitrate sources and fates in rivers in an irrigated agricultural area using environmental isotopes and a Bayesian isotope mixing model

Chemosphere ◽  
2018 ◽  
Vol 208 ◽  
pp. 493-501 ◽  
Author(s):  
Yan Zhang ◽  
Peng Shi ◽  
Fadong Li ◽  
Anlei Wei ◽  
Jinxi Song ◽  
...  
Keyword(s):  
Environmental Isotopes ◽  
Mixing Model ◽  
Agricultural Area ◽  
Nitrate Sources ◽  
Bayesian Isotope Mixing Model

Combining dual isotopes and a Bayesian isotope mixing model to quantify the nitrate sources of precipitation in Ningbo, East China

2021 ◽  
Vol 778 ◽  
pp. 146297
Author(s):  
Yasheng Shi ◽  
Cai Li ◽  
Zanfang Jin ◽  
Yongqi Zhang ◽  
Jiazheng Xiao ◽  
...  
Keyword(s):  
Mixing Model ◽  
East China ◽  
Nitrate Sources ◽  
Bayesian Isotope Mixing Model

Use of a Bayesian isotope mixing model to estimate proportional contributions of multiple nitrate sources in surface water

2012 ◽  
Vol 161 ◽  
pp. 43-49 ◽  
Author(s):  
Dongmei Xue ◽  
Bernard De Baets ◽  
Oswald Van Cleemput ◽  
Carmel Hennessy ◽  
Michael Berglund ◽  
...  
Keyword(s):  
Surface Water ◽  
Mixing Model ◽  
Nitrate Sources ◽  
Bayesian Isotope Mixing Model

Assessment of nitrate sources in groundwater of Monterrey Valley using a multi-tracer approach combined with a probability isotope mixing model

2020 ◽  
Author(s):  
Juan Antonio Torres-Martinez ◽  
Abrahan Mora ◽  
Peter S.K. Knappett ◽  
Nancy Ornelas-Soto ◽  
Jürgen Mahlknecht
Keyword(s):  
Management Strategies ◽  
Nitrate Pollution ◽  
Mixing Model ◽  
Nitrate Sources ◽  
Isotopic Tracers ◽  
Urban Sewage ◽  
Bayesian Isotope Mixing Model ◽  
Potential Pollution ◽  
Transformation Processes ◽  
Different Sources

<p>Groundwater quality deterioration by nitrate pollution due to the intensive use of fertilizers in agriculture, release of untreated urban sewage and industrial wastewater, and atmospheric deposition is a worldwide concern. The urbanized and industrialized Monterrey valley has a long record of elevated nitrate concentrations in groundwater with multiple potential pollution sources. This study aimed to fingerprint different sources and transformation processes of nitrate pollution in Monterrey using a suite of chemical and isotopic tracers (δ<sup>2</sup>H-H<sub>2</sub>O, δ<sup>18</sup>O-H<sub>2</sub>O, δ<sup>15</sup>N-NO<sub>3</sub>, δ<sup>18</sup>O-NO<sub>3</sub>) combined with a Bayesian isotope mixing model. The results suggest that soil nitrogen and sewage were the most important nitrate sources. However, the concentrations of nitrate were controlled by denitrification processes in the transition and discharge zones. The approach followed in this study is useful for establishing effective pollution management strategies in contaminated aquifers.</p>

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