Nitrate in groundwater: an isotopic multi-tracer approach

Wîdory, David; Kloppmann, Wolfram; Chery, Laurence; Bonnin, Jacky; Rochdi, Houda; Guinamant, J. L.

doi:10.1016/j.jconhyd.2003.10.010

Cited by 255 publications

(208 citation statements)

References 41 publications

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“…32 In this study it was also shown that boron concentrations moderately correlated with potassium, a soluble element that occurs mostly in urine, but not with phosphor, an element that is mostly in faeces. These correlations are consistent with boron residing mainly in the urine component of manure.…”

Section: Fertilizerssupporting

confidence: 52%

Boron isotope ratio (δ11B) measurements in Water Framework Directive monitoring programs: comparison between double focusing sector field ICP and thermal ionization mass spectrometry

Tirez

Brusten

Wîdory

et al. 2010

J. Anal. At. Spectrom.

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The aim of our research was to compare d 11 B measurements performed with thermal ionization mass spectrometry (TIMS) and sector field-inductively coupled plasma-mass spectrometry (SF-ICP-MS) and evaluate the feasibility of implementing stable isotope methods in European water framework directive (WFD) monitoring programs. The comparison was based on d B measurements attainable with SF-ICP-MS, 2s¼ AE 2.6&; (n ¼ 192), is as expected lower than the precision achieved by TIMS, 2s¼ AE 0.3& (n ¼ 183). However the ease of use, rapidity and availability of SF-ICP-MS on one hand and the observed variability in d 11 B in ground-and surface water on the other (from À3.4 to +37&), demonstrates that using SF-ICP-MS as an isotopic screening method would promote the use of isotopic methodology for WFD monitoring. Based on the results of the different case studies it is shown that retrieving precise information on the identification of pollution sources from d11 B values requires reaching the best analytical precision and accuracy possible. Hence, the superior precision of TIMS advantages tracing of nitrate pollution sources. However for some cases, e.g. trying to decipher contributions between sources with really distinct d 11 B signatures (e.g. manure and sewage effluent), SF-ICP-MS results lead to the same conclusions and can therefore be used as a first approachable screening method for the determination of d 11 B in WFD monitoring programs.

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Section: Fertilizerssupporting

confidence: 52%

Boron isotope ratio (δ11B) measurements in Water Framework Directive monitoring programs: comparison between double focusing sector field ICP and thermal ionization mass spectrometry

Tirez

Brusten

Wîdory

et al. 2010

J. Anal. At. Spectrom.

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“…Potassium ions in groundwater often come from orthoclase and muscovite minerals present in granite, and from pollution sources such as chemical fertilizer and domestic effluents. Chloride (Cl − ) may be derived from pollution sources such as industrial and domestic effluents, fertilizers and septic tanks (Bohlke and Horan 2000;Edmunds et al 2003;Negrel and Pauwels 2003;Petelet-Giraud et al 2003;Widory et al 2004; Valdes et al 2007), and from natural sources such as rainfall, the dissolution of fluid inclusions and chloridebearing minerals (Negrel and Roy 1998;Negrel 1999). Groundwater contamination due to nitrate has been a concern for some time.…”

Section: Groundwater Pollution In Urban Areasmentioning

confidence: 99%

Influences of natural and anthropogenic factors on surface and groundwater quality in rural and urban areas

Khatri¹,

Tyagi²

2014

Frontiers in Life Science

745

283

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Although water constitutes 71% of the earth's surface, only 0.3% of it is available as fresh water for human use. Moreover, the quality of fresh water in ground and surface systems is of great concern, as potable water needs to have appropriate mineral content. Ground and surface water quality in rural and urban environments is affected by both natural processes and anthropogenic influences. Because of this, water is becoming scarcer as the population increases across the world. Natural processes leading to changes in water quality include weathering of rocks, evapotranspiration, depositions due to wind, leaching from soil, run-off due to hydrological factors, and biological processes in the aquatic environment. These natural processes cause changes in the pH and alkalinity of the water, and also phosphorus loading, increase in fluoride content and high concentrations of sulphates. Anthropogenic factors affecting water quality include impacts due to agriculture, use of fertilizers, manures and pesticides, animal husbandry activities, inefficient irrigation practices, deforestation of woods, aquaculture, pollution due to industrial effluents and domestic sewage, mining, and recreational activities. These anthropogenic influences cause elevated concentrations of heavy metals, mercury, coliforms and nutrient loads. This paper studies the effects of natural processes and human influences in rural and urban aquatic systems. Pollution due to environmental parameters such as heavy metal pollution, heavy metals and bacterial and pathogenic contamination of both urban and rural areas is discussed in detail.

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“…The anthropogenic sources (chemical fertilisers, manure and sewage) were characterised by measuring Sr isotopes. Manure samples were obtained by lixiviation according to the procedures given by Widory et al (2004).…”

Section: Sampling and Analytical Methodsmentioning

confidence: 99%

“…Systematic variations in the isotopic composition of surface-and groundwater can result either from water-rock interactions or an input of pollutants that are chemically or isotopically different from the water (Petelet et al, 1998;Roy et al, 1999;Semhi et al, 2000;Ojiambo et al, 2003;Widory et al, 2004). They can be used to identify contributions from different sources and, under optimum conditions, to quantify the relative contributions from the various sources identified Böhlke and Horan, 2000;Douglas et al, 2002;Négrel and Pauwels, 2004).…”

Section: Introductionmentioning

confidence: 99%

Strontium isotope geochemistry of alluvial groundwater: a tracer for groundwater resources characterisation

Négrel

Petelet‐Giraud

Wîdory

2004

Hydrol. Earth Syst. Sci.

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This study presents strontium isotope and major ion data of shallow groundwater and river water from the Ile du Chambon catchment, located on the Allier river in the Massif Central (France). There are large variations in the major-element contents in the surface-and groundwater. Plotting of Na vs. Cl contents and Ca, Mg, NO 3 , K, SO 4 , HCO 3 , Sr concentrations reflect waterrock interaction (carbonate dissolution for Ca, Mg, HCO 3 and Sr because the bedrock contains marly limestones), agricultural input (farming and fertilising) and sewage effluents (for NO 3 , K, SO 4 ), although some water samples are unpolluted. Sr contents and isotope ratios ( 87 Sr/ 86 Sr vary from 0.70892 to 0.71180 along the hydrological cycle) in the groundwater agree with previous work on groundwater in alluvial aquifers in the Loire catchment. The data plot along three directions in a 87 Sr/ 86 Sr vs. 1/Sr diagram as a result of mixing, involving at least three geochemical signaturesAllier river water, and two distinct signatures that might be related to different water-rock interactions in the catchment. Mixing proportions are calculated and discussed. The alluvial aquifer of the Ile du Chambon catchment is considered, within the Sr isotope systematic, in a larger scheme that includes several alluvial aquifers of the Loire Allier catchment.

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Nitrate in groundwater: an isotopic multi-tracer approach

Cited by 255 publications

References 41 publications

Boron isotope ratio (δ11B) measurements in Water Framework Directive monitoring programs: comparison between double focusing sector field ICP and thermal ionization mass spectrometry

Boron isotope ratio (δ11B) measurements in Water Framework Directive monitoring programs: comparison between double focusing sector field ICP and thermal ionization mass spectrometry

Influences of natural and anthropogenic factors on surface and groundwater quality in rural and urban areas

Strontium isotope geochemistry of alluvial groundwater: a tracer for groundwater resources characterisation

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