Arsenic in Drinking Water: Is 10 μg/L a Safe Limit?

Arslan, Ahmad; Bhattacharya, Prosun

doi:10.1007/s40726-019-0102-7

Cited by 115 publications

(39 citation statements)

References 16 publications

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“…In the current study, the recording of Uranium concentrations in the Shatt al-Arab water during the spring and summer seasons in comparison to the absence of any concentration during the winter and autumn seasons,it may be due to the large bodies of water that entered from Iranian lands in the spring of 2019 that entered the Shatt al-Arab via the Sweib River passing through the Hawizehmarsh, which may contain part of the contaminated war remnants. Where the Shatt al-Arab received large water bodies due to the torrents from Iran which extended from spring 2019 until the summer of the same year ,in addition, the Shatt al-Arab is a center for large quantities of various sediments, which may reach more than 200,000 tons annually (Albadran et al, 2002).Furthermore in the current study, the high concentrations of Uranium in the spring and summer seasons in the water compared with the winter and autumn seasons are not considered a threat to human life compared to the reports of the World Health Organization(WHO) (Frisbie et al, 2013), as well as in the present study, the values of Arsenic levels in water gave safe determinants compared to the World Health Organization standard (10 µg /l) for drinking water (Driehaus et al, 1998;Ahmad and Bhattacharya, 2019). In addition, the current study the values of Beryllium concentrations was below the detection limit in water for all seasons and this may be due to nature of pH in Shatt Al-Arab River where it are alkaline .…”

Section: Discussionsupporting

confidence: 65%

Determination of the Concentrations of Some Trace Elements (Uranium, Arsenic, Beryllium, and Vanadium) in Water and Sediments of Shatt Al-Arab River- Southern Iraq

Amer¹,

Al-Khafaji²

2021

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The current study included two sites in the middle part of Shatt Al-Arab-Southern Iraq (Al-Ashar and Al-Deir sites), the concentrations of trace elements which represented by Uranium, Arsenic, Beryllium and Vanadium were measured in water and sediments of four seasons from autumn 2018 to summer 2019 . The concentrations of trace elements showed variations at the level of significance in the water and sediments, Uranium recorded its highest concentration in the study water (6.1 µg/l) at the spring of Al-Deir site. While its highest concentrations in sediments reached (2.4 µg/g) at Al-Ashar site, moreover the highest concentration of Arsenic in water was (4.2 µg/l) at autumn of Al-Deir site and (6.1 µg/g) for sediments at Al-Ashar site ,as well as the concentration of Beryllium was below the detection limit (BDL) in water , while its highest concentration in sediments was recorded (1.1µg/g) as well as the highest concentration of Vanadium was (8.4 µg / l) in water and (87µg/g) in sediments.

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Section: Discussionsupporting

confidence: 65%

Determination of the Concentrations of Some Trace Elements (Uranium, Arsenic, Beryllium, and Vanadium) in Water and Sediments of Shatt Al-Arab River- Southern Iraq

Amer¹,

Al-Khafaji²

2021

PLANT ARCHIVES

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“…Shell-by-shell fits of the Fourier-transformed Mn K-edge EXAFS spectrum of the Ref O 2 sample (Fig 3.8, Table 3.3) returned an Mn-O interatomic distance (R Mn-O ) of 1.93±0.02 Å and an Mn-O coordination number (CN Mn-O ) of 1.9±0.5, which is lower than the theoretical CN of 6 for octahedrally coordinated Mn(III). These (Table 3.3) and longer than the edge-sharing Mn-Mn bond in groutite (Wyckoff 1963). However, the fit-derived R Mn-Mn/Fe value for this sample is in good agreement with the edge-sharing Fe-Fe bond length in the Fe(III) precipitates that formed in this sample (i.e.…”

Section: O 2 Experimentssupporting

confidence: 56%

Arsenic removal by iron based co-precipitation : Mechanisms in groundwater treatment

Arslan¹

Self Cite

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Research objectives 1.7 Thesis outline References 2. Arsenite removal in groundwater treatment plants by permanganate and ferric treatment Abstract 2.1 Introduction 2.2 Materials and methods 2.2.1 Treatment layout and water quality of WTP Dorst 2.2.2 Optimizing MnO 4-Fe(III) doses to achieve <1 µg/L As 2.2.3 Influence of MnO 4-Fe(III) dosing on removal of As, Fe, Mn and NH 4 + 2.2.4 Influence of MnO 4-Fe(III) dosage on filter backwash solids characteristics 2.2.5 Settling characteristics of filter backwash solids 2.2.6 Solid phase characterization 2.2.7 Analysis of water samples 2.3 Results and discussion 2.3.1 Optimizing MnO 4-Fe(III) doses to achieve <1 µg/L As 2.3.2 Influence of MnO 4-Fe(III) dose on As, Fe, Mn and NH 4 + removal profiles 2.3.3 Influence of MnO 4-Fe(III) dosing on filter backwash solids 2.4 Conclusions Acknowledgements References 3. Characteristics of Fe and Mn bearing precipitates generated by Fe(II) and Mn(II) co-oxidation with O 2 , MnO and HOCl in the presence of groundwater ions Abstract 58 3.1 Introduction 59 3.

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“…The biosensor demonstrated detection of As 3+ in the linear dynamic range of 0.01-10 µg/L and a detection limit of 0.003 × 10 −3 µg/L. These specifications are suited well to the regulatory limit of 10 µg/L recommended by the World Health Organization (Ahmad and Bhattacharya, 2019). Additionally, the biosensor was used to detect As 3+ obtained from six different ground water sources in India as well as one river sample.…”

Section: Arsenicmentioning

confidence: 85%

Aptamer-Based Biosensors for Environmental Monitoring

2020

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Due to their relative synthetic and chemical simplicity compared to antibodies, aptamers afford enhanced stability and functionality for the detection of environmental contaminants and for use in environmental monitoring. Furthermore, nucleic acid aptamers can be selected for toxic targets which may prove difficult for antibody development. Of particular relevance, aptamers have been selected and used to develop biosensors for environmental contaminants such as heavy metals, small-molecule agricultural toxins, and water-borne bacterial pathogens. This review will focus on recent aptamer-based developments for the detection of diverse environmental contaminants. Within this domain, aptamers have been combined with other technologies to develop biosensors with various signal outputs. The goal of much of this work is to develop cost-effective, user-friendly detection methods that can complement or replace traditional environmental monitoring strategies. This review will highlight recent examples in this area. Additionally, with innovative developments such as wearable devices, sentinel materials, and lab-on-a-chip designs, there exists significant potential for the development of multifunctional aptamer-based biosensors for environmental monitoring. Examples of these technologies will also be highlighted. Finally, a critical perspective on the field, and thoughts on future research directions will be offered.

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Arsenic in Drinking Water: Is 10 μg/L a Safe Limit?

Cited by 115 publications

References 16 publications

Determination of the Concentrations of Some Trace Elements (Uranium, Arsenic, Beryllium, and Vanadium) in Water and Sediments of Shatt Al-Arab River- Southern Iraq

Determination of the Concentrations of Some Trace Elements (Uranium, Arsenic, Beryllium, and Vanadium) in Water and Sediments of Shatt Al-Arab River- Southern Iraq

Arsenic removal by iron based co-precipitation : Mechanisms in groundwater treatment

Aptamer-Based Biosensors for Environmental Monitoring

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