TY  - JOUR
AU  - Miljević, Nada R.
AU  - Boreli-Zdravkovic, Djulija
AU  - Velickovic, Jovana
AU  - Golobočanin, Dušan D.
AU  - Mayer, Bernhard
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4372
AB  - The dual-isotope method of measuring both the 34S and 18O values of dissolved sulphate to assess the origin and fate of groundwater sulphate at the Klju groundwater source, Serbia is applied. A sampling campaign was conducted in September 2007 during low-flow conditions, obtaining river water and groundwater from observation wells completed in a shallow aquifer formed in alluvial sandygravelly sediments. In the shallow groundwater, sulphate concentrations ranged from 56.2 to 165.0mg l1. The 34S values of sulphate varied from5.5 to+3.0 parts per thousand and values from+1.4 to+4.2 parts per thousand. Oxidation of pedospheric (organic soil S) and lithogenic sulphur sources (e.g. pyrite) were identified as the main causes for the increasing sulphate concentrations in the analysed groundwater. This study shows that combining hydrological, chemical, and isotopic techniques is a powerful approach to identifying sources and processes that control sulphate in water resources.
T2  - Isotopes in Environmental and Health Studies
T1  - Evaluation of the origin of sulphate at the groundwater source Kljuc, Serbia
VL  - 49
IS  - 1
SP  - 62
EP  - 72
DO  - 10.1080/10256016.2013.729509
ER  - 

@article{
author = "Miljević, Nada R. and Boreli-Zdravkovic, Djulija and Velickovic, Jovana and Golobočanin, Dušan D. and Mayer, Bernhard",
year = "2013",
abstract = "The dual-isotope method of measuring both the 34S and 18O values of dissolved sulphate to assess the origin and fate of groundwater sulphate at the Klju groundwater source, Serbia is applied. A sampling campaign was conducted in September 2007 during low-flow conditions, obtaining river water and groundwater from observation wells completed in a shallow aquifer formed in alluvial sandygravelly sediments. In the shallow groundwater, sulphate concentrations ranged from 56.2 to 165.0mg l1. The 34S values of sulphate varied from5.5 to+3.0 parts per thousand and values from+1.4 to+4.2 parts per thousand. Oxidation of pedospheric (organic soil S) and lithogenic sulphur sources (e.g. pyrite) were identified as the main causes for the increasing sulphate concentrations in the analysed groundwater. This study shows that combining hydrological, chemical, and isotopic techniques is a powerful approach to identifying sources and processes that control sulphate in water resources.",
journal = "Isotopes in Environmental and Health Studies",
title = "Evaluation of the origin of sulphate at the groundwater source Kljuc, Serbia",
volume = "49",
number = "1",
pages = "62-72",
doi = "10.1080/10256016.2013.729509"
}

Miljević, N. R., Boreli-Zdravkovic, D., Velickovic, J., Golobočanin, D. D.,& Mayer, B.. (2013). Evaluation of the origin of sulphate at the groundwater source Kljuc, Serbia. in Isotopes in Environmental and Health Studies, 49(1), 62-72.
https://doi.org/10.1080/10256016.2013.729509

Miljević NR, Boreli-Zdravkovic D, Velickovic J, Golobočanin DD, Mayer B. Evaluation of the origin of sulphate at the groundwater source Kljuc, Serbia. in Isotopes in Environmental and Health Studies. 2013;49(1):62-72.
doi:10.1080/10256016.2013.729509 .

Miljević, Nada R., Boreli-Zdravkovic, Djulija, Velickovic, Jovana, Golobočanin, Dušan D., Mayer, Bernhard, "Evaluation of the origin of sulphate at the groundwater source Kljuc, Serbia" in Isotopes in Environmental and Health Studies, 49, no. 1 (2013):62-72,
https://doi.org/10.1080/10256016.2013.729509 . .

TY  - JOUR
AU  - Miljević, Nada R.
AU  - Boreli-Zdravkovic, Djulija
AU  - Obradović, Vesna
AU  - Golobočanin, Dušan D.
AU  - Mayer, Bernhard
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4941
AB  - This paper describes the use of the dual isotope method involving delta N-15 and delta O-18 measurements of dissolved nitrates to assess the origin and fate of groundwater nitrate at the Kljuc groundwater source, Serbia. A sampling campaign was conducted in September 2007 during flow conditions obtaining groundwater from observation wells and river water fed by a shallow aquifer hosted in alluvial (sandy-gravel) sediments. Nitrate isotope ratios ranged from +5.3 to +16.9 parts per thousand and delta O-18(NO3) values varied from -2.3 to +5.0%. Two major contamination sources were identified with isotopic compositions characteristic for nitrate derived from nitrification of soil organic nitrogen (+5.3 to +7.8% for delta N-15) resulting in nitrate concentrations of 33.6 and 78.8 mg/L and nitrate derived from animal wastes or human sewage, e. g. via septic systems, yielding delta N-15 values of +9.9 to +11.9 parts per thousand and elevated nitrate concentrations of 31.2-245.8 mg/L. The occurrence of nitrification and denitrification was also revealed based on concentration and isotope data for dissolved nitrate.
T2  - Water Science and Technology
T1  - Evaluation of the origin of nitrate influencing the Kljuc groundwater source, Serbia
VL  - 66
IS  - 3
SP  - 472
EP  - 478
DO  - 10.2166/wst.2012.179
ER  - 

@article{
author = "Miljević, Nada R. and Boreli-Zdravkovic, Djulija and Obradović, Vesna and Golobočanin, Dušan D. and Mayer, Bernhard",
year = "2012",
abstract = "This paper describes the use of the dual isotope method involving delta N-15 and delta O-18 measurements of dissolved nitrates to assess the origin and fate of groundwater nitrate at the Kljuc groundwater source, Serbia. A sampling campaign was conducted in September 2007 during flow conditions obtaining groundwater from observation wells and river water fed by a shallow aquifer hosted in alluvial (sandy-gravel) sediments. Nitrate isotope ratios ranged from +5.3 to +16.9 parts per thousand and delta O-18(NO3) values varied from -2.3 to +5.0%. Two major contamination sources were identified with isotopic compositions characteristic for nitrate derived from nitrification of soil organic nitrogen (+5.3 to +7.8% for delta N-15) resulting in nitrate concentrations of 33.6 and 78.8 mg/L and nitrate derived from animal wastes or human sewage, e. g. via septic systems, yielding delta N-15 values of +9.9 to +11.9 parts per thousand and elevated nitrate concentrations of 31.2-245.8 mg/L. The occurrence of nitrification and denitrification was also revealed based on concentration and isotope data for dissolved nitrate.",
journal = "Water Science and Technology",
title = "Evaluation of the origin of nitrate influencing the Kljuc groundwater source, Serbia",
volume = "66",
number = "3",
pages = "472-478",
doi = "10.2166/wst.2012.179"
}

Miljević, N. R., Boreli-Zdravkovic, D., Obradović, V., Golobočanin, D. D.,& Mayer, B.. (2012). Evaluation of the origin of nitrate influencing the Kljuc groundwater source, Serbia. in Water Science and Technology, 66(3), 472-478.
https://doi.org/10.2166/wst.2012.179

Miljević NR, Boreli-Zdravkovic D, Obradović V, Golobočanin DD, Mayer B. Evaluation of the origin of nitrate influencing the Kljuc groundwater source, Serbia. in Water Science and Technology. 2012;66(3):472-478.
doi:10.2166/wst.2012.179 .

Miljević, Nada R., Boreli-Zdravkovic, Djulija, Obradović, Vesna, Golobočanin, Dušan D., Mayer, Bernhard, "Evaluation of the origin of nitrate influencing the Kljuc groundwater source, Serbia" in Water Science and Technology, 66, no. 3 (2012):472-478,
https://doi.org/10.2166/wst.2012.179 . .