Determination of uranium at ultra trace level in packaged drinking water by laser fluorimeter and consequent ingestion dose

Sahoo, Santosh Kumar; Mohapatra, S.K.; Chakrabarty, A.; Sumesh, C.G.; Jha, Vivekanand; Tripathi, R. M.; Puranik, V. D.

doi:10.1051/radiopro/2009030

Cited by 31 publications

(4 citation statements)

References 14 publications

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“…The concentrations of uranium measured in the present work shows that they are well within the suggested limit. A recent study conducted in the packaged drinking water samples in India found that the range of uranium in water between 0.04µg/l to 3.88 µg/l (Sahoo et al, 2010).…”

Section: Resultsmentioning

confidence: 99%

Heterogeneity of uranium in water from south peninsular India

Jose

Sunil

Byju

et al. 2011

IJFPS

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The South Peninsular India is known to have very high levels of natural background radiation due to the monazite rich beach sand. Primordial uranium is ubiquitous and the heaviest radio toxic trace element available in all terrestrial substances at varying levels depending on the geology of the region. Uranium series supports several short-lived radioisotopes during its decay including radium. Uranium in drinking water is important in terms of the ingestion dose also. This report depicts the results of uranium analysis of 600 water samples collected from the south coast peninsular region extending parts of Kerala and Tamilnadu states of India through fission track registration technique. Results of the analyses of water samples collected from different sources in the south coast of India show that uranium concentrations vary from 0.82 µg/l to 7.32 µg/l equivalents to the specific activity of 10.33 Bq/m 3 and 92.23Bq/m 3 , respectively. Estimated daily intake of uranium through drinking water ranges from 20.22 to 18.58mBq/kg and is lower than the recommended limits of intake. The heterogeneity in distribution of uranium in water bodies is due to the presence of monazite sand deposited in the coast over the years.

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Section: Resultsmentioning

confidence: 99%

Heterogeneity of uranium in water from south peninsular India

Jose

Sunil

Byju

et al. 2011

IJFPS

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“…For the modified laser fluorimetric method validation, eight water samples were analyzed for uranium isotopes by alpha spectrometry. The combined 234 U and 238 U activities were converted to mass (μg/L), using the natural isotopic abundances and the specific activity of both uranium isotopes [22], and were compared with their corresponding values measured by laser fluorimetry, as shown in figure 2.…”

Section: Methods Validationmentioning

confidence: 99%

“…In order to convert the mass of total uranium (μg L −1 ) to activity (Bq L −1 ), two approaches were followed. The first approach was to fractionate the determined uranium mass for each water sample into three isotopic activities ( 238 U, 234 U, 235 U) according to their mass abundances (99.27, 0.0055, and 0.72% respectively) and their specific activities (12.4, 230.14×10 3 , and 79.2 Bq mg −1 respectively) [22]. The second approach was to assume that the total specific activity of the natural uranium is 25.4 Bq mg −1 and to multiply this value by the determined uranium concentrations and the DCF of 4.5×10 −8 [22,26].…”

Section: Dose Assessmentmentioning

confidence: 99%

Uranium content in groundwater by laser fluorimetry; method validation and dose assessment

2018

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In this study, the total uranium concentration was determined in groundwater samples used for irrigation and/or drinking purposes and collected from private wells in Al Sharqiya region, Saudi Arabia. The uranium concentrations were measured by laser fluorimetry preceded by radiochemical treatment to eliminate the quenching effect due to the high total dissolved solids content in the groundwater samples. For method validation, some of the measured samples were analyzed for uranium isotopic activities and measured by alpha spectrometry. The results of the uranium concentrations obtained by laser fluorimetry and alpha spectrometry were in good agreement. The uranium concentrations in all the samples were below the World Health Organization (WHO) recommended limit of 30 μg L. Two different approaches were followed to assess the annual effective dose from the ingestion of uranium in the analyzed groundwater samples. The annual effective doses determined by the two approaches were found to be in agreement, and varied from 2.9 to 10.2 μSv y, with a mean value of 6.1 μSv y, which is far below the WHO recommended level of 100 μSv/y. The modified laser fluorimetric procedure was found to be a good tool compared with other techniques for direct measurement of uranium concentrations in high total dissolved solids groundwater samples at low levels.

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“…Fluorescence measurements provide information about the uranium content in the sample. (Sahoo et al, 2009(Sahoo et al, , 2010. The standard addition technique is used to evaluate each sample due to changes in the chemical composition of the collected water samples and to avoid the matrix effect.…”

Section: Analysis Of Physicochemical Parametersmentioning

confidence: 99%

Hydrogeochemical evaluation and spatial distribution mapping of groundwater from Aurangabad city as hard rock aquifer from Deccan trap basalt

Kale

Dhapate

Bandela

et al. 2023

Preprint

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The groundwater chemistry is significant before it is utilized. It is influenced by the region's geology, hydrogeology, geochemistry, and climatic conditions. The groundwater hydrogeochemistry of Aurangabad city was examined in this investigation, which was backed by geographical distribution mapping. Standard procedures were employed to assess the water quality parameters as well as the uranium concentration. Several water classification techniques, including the Piper trilinear diagram, the Durov diagram, and the Chadha classification, are used to assess groundwater type and the sorts of geochemical processes that occur in the studied area. Groundwater was also evaluated for its suitability for drinking and irrigation purposes using a set of metrics. Stage-by-stage quality control and assurance were used to ensure data quality. The correlation analysis test is employed to assess the associations between parameters. According to assessed indices, the groundwater in the study area is acceptable for drinking and irrigation.

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Determination of uranium at ultra trace level in packaged drinking water by laser fluorimeter and consequent ingestion dose

Cited by 31 publications

References 14 publications

Heterogeneity of uranium in water from south peninsular India

Heterogeneity of uranium in water from south peninsular India

Uranium content in groundwater by laser fluorimetry; method validation and dose assessment

Hydrogeochemical evaluation and spatial distribution mapping of groundwater from Aurangabad city as hard rock aquifer from Deccan trap basalt

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