Arsenic in drinking water and mortality in the Southern Great Plain, Hungary

Varsányi, Irén; Fodré, Zsófia; Bartha, András

doi:10.1007/bf01783491

Cited by 76 publications

(34 citation statements)

References 13 publications

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“…Release of soluble As species into groundwater is a serious problem in many areas of the world (Varsanyi et al 1991;Lepkowski 1998;Welch et al 2000;Tian et al 2001;Bhattacharya et al 2002;Nickson et al 2005;Farooqi et al 2006Farooqi et al , 2007Guo et al 2011;Brahman et al 2013). A number of large aquifers in the various parts of the world have been reported with As >50 µg/L.…”

Section: World-wide Occurrences Of Arsenic and Fluoride Contaminated mentioning

confidence: 96%

Arsenic and Fluoride Pollution in Water and Soils

Farooqi

2015

Arsenic and Fluoride Contamination

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Section: World-wide Occurrences Of Arsenic and Fluoride Contaminated mentioning

confidence: 96%

Arsenic and Fluoride Pollution in Water and Soils

Farooqi

2015

Arsenic and Fluoride Contamination

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“…From the point of view of groundwater contamination, As and F -have received the most attention due to their toxicity (e.g., Smedley et al, 2002). The release of soluble As species into groundwater is a serious problem in many areas of the world (e.g., Varsanyi et al, 1991;Lepkowski, 1998;Welch et al, 2000;Tian et al, 2001;Bhattacharya et al, 2004;Nickson et al, 2005). The World Health Organiza-fluorosis, if it is higher than 1.5 mg/L (CDCP, 1999).…”

Section: Introductionmentioning

confidence: 99%

Distribution of highly arsenic and fluoride contaminated groundwater from east Punjab, Pakistan, and the controlling role of anthropogenic pollutants in the natural hydrological cycle

et al. 2007

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This paper reports the extended study from a previously-described study on As and F contaminated groundwater from a small village, Kalalanwala, in east Punjab, Pakistan (Farooqi et al., 2007). Of the 147 groundwater samples investigated, 91% exceeded the WHO standard (10 µg/L) for As and 75% exceeded the WHO standard (1.5 mg/L) for F -. The highly contaminated As (max. 2400 µg/L) and F -(max. 22.8 mg/L) groundwaters were found from shallow depths down to 30 m from the surface. The contaminated groundwaters are characterized by high pH (max. 8.8), alkalinity (HCO 3 -up to 1281 mg/L), SO 4 2-(max. 960 mg/L), Na + (max. 1058 mg/L) and maximum electric conductivity >4.6 mS/cm. Fluoride concentrations showed positive correlations with those of Na + and HCO 3 -and negative ones with Ca 2+and Mg 2+ . The alkaline waters were saturated with calcite in spite of the low Ca 2+ concentrations. Fluoride concentration is governed by fluorite solubility. Speciation analysis showed As is mostly in the form of As V . There was a positive correlation between As and pH, while there is no relationship between As vs. Fe and F -. Thus, the fluoride and As contamination occurred in the oxidizing and alkaline conditions of the groundwater. However, F -and As are derived from two or more sources. Suspected contaminant sources in the study area contained considerable amounts of F -and As; fertilizers (DAP, n = 5) contained leachable F -ranging from 53-255 mg/kg, and As 5-10 mg/kg, and coals (n = 8) contained F -ranging from 5-20 mg/kg. Sulfur isotopic ratios indicated that the high SO 4 2-in groundwater (3.2-7.0‰, CDT) is mainly derived from coal combusted atmospheric pollutants, fertilizers and household wastes. Nitrogen isotope data (8-30‰, Air) showed that NO 3 --N is attributed to animal waste distributed in the study area. The major chemical characteristics of the groundwaters are related with anthropogenic activities on the ground surface. The resultant major chemistry, especially highly alkaline and low Ca 2+ and Mg 2+ concentrations, must promote the high concentrations of F -and As in the studied groundwaters.Keywords: environmental pollution, phosphorus, semiarid climate, Indus Basin nitrogen and sulfur isotopes tion (WHO) guideline of As concentration in drinking water was reduced from 50 µg/L to 10 µg/L in 1993 (WHO, 1993). According to the WHO recommendation many developed countries changed the maximum admissible concentrations to 10 µg/L, however the developing countries, where arsenicosis is more widespread, are still using the previous guideline value (50 µg/L) due to the lack of facilities to analyze smaller concentrations precisely (Nickson et al., 2005). High F -groundwater causes fluorosis in several regions of the world; East Africa (Nanyaro et al., 1984), India (Rao et al., 1993), and Inner Mongolia in China (Wang et al., 1999). The drinking water limit (DWL) for F -is 1.5 mg/L (WHO, 1994). Fluoride in drinking water has a narrow optimum concentration range in relation to human health. It prevents dental caries in ...

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“…15,20,24 The World Health Organization (WHO) recommends an upper limit of 10 ng/ml for arsenic in drinking water. 25 The inorganic species arsenate and arsenite are the predominant form of arsenic in terrestrial plants, whereas organic species like DMA and MMA have only been found in relatively low concentrations.…”

Section: Introductionmentioning

confidence: 99%

Application of synchrotron‐radiation‐induced TXRF‐XANES for arsenic speciation in cucumber (Cucumis sativus L.) xylem sap

et al. 2007

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Synchrotron-radiation-induced total reflection x-ray fluorescence (SR-TXRF) analysis was used for x-ray absorption near edge structure (XANES) measurements for the speciation of arsenic in cucumber (Cucumis sativus L.) xylem sap. The objective of the presented work was to exploit the advantages of the TXRF geometry for XANES analysis. Measurements were accomplished at the bending magnet beamline L of HASYLAB, Hamburg, Germany, using a Si(111) double crystal monochromator and a silicon drift detector (SDD). Experiments were performed by growing cucumber plants in hydroponics containing arsenite [As(III)] or arsenate [As(V)] in order to identify the arsenic species of the collected xylem saps by K-edge SR-TXRF XANES. Cucumber xylem saps, as well as nutrient solutions containing arsenic in the two above-mentioned species, were analyzed and compared with arsenate and arsenite standard solutions. Arsenic speciation in xylem sap down to 30 ng/ml (30 ppb) was achieved, and no alteration of the oxidation state was observed during the measurements. Analysis of xylem saps showed that As(V) taken up from the nutrient solution was reduced to As(III). As(III) contained in the nutrient solutions was found to be partially oxidized to As(V). These results confirmed the preliminary measurements obtained with flow injection analysis (FIA) and high-performance liquid chromatography-high resolution inductively coupled plasma mass spectrometry (HPLC-HR-ICP-MS) and showed the competitive capability of SR-TXRF XANES analysis for this application.

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Arsenic in drinking water and mortality in the Southern Great Plain, Hungary

Cited by 76 publications

References 13 publications

Arsenic and Fluoride Pollution in Water and Soils

Arsenic and Fluoride Pollution in Water and Soils

Distribution of highly arsenic and fluoride contaminated groundwater from east Punjab, Pakistan, and the controlling role of anthropogenic pollutants in the natural hydrological cycle

Application of synchrotron‐radiation‐induced TXRF‐XANES for arsenic speciation in cucumber (Cucumis sativus L.) xylem sap

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