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

Published online by Cambridge University Press:  08 March 2010

S.K. Sahoo ,
S. Mohapatra ,
A. Chakrabarty ,
C.G. Sumesh ,
V.N. Jha ,
R.M. Tripathi  and
V.D. Puranik
S.K. Sahoo
Affiliation:
Environmental Assessment Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
S. Mohapatra
Affiliation:
Environmental Assessment Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
A. Chakrabarty
Affiliation:
Environmental Assessment Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
C.G. Sumesh
Affiliation:
Environmental Assessment Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
V.N. Jha
Affiliation:
Environmental Assessment Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
R.M. Tripathi
Affiliation:
Environmental Assessment Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
V.D. Puranik
Affiliation:
Environmental Assessment Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
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Abstract

Precise and accurate estimation of natural radioactivity is essential in order toappraise the radiation dose to the member of public due to various intakes. In the presentstudy, an attempt has been made to estimate the uranium content in packaged drinking waterby laser induced fluorimetry and then to calculate the committed effective dose. Sixtypackaged drinking water samples of different brands were analysed for uranium content. Thetotal uranium content in these samples was found to be in the range of 0.04–3.88µg l-1. The concentration of uranium is comparable with other reportedworldwide values except a few high values such as 0.5–6000 µg l-1 in Finland,0.1–28 µg l-1 in China, 0.1–40 µg l-1 in Switzerland and 0.04–1400µg l-1 in Jordan and much lower than the drinking water limit of 15µg l-1 (WHO, 2004) and 30 µg l-1 (USEPA, 2000a). The radiationdose due to uranium ingestion through packaged drinking water was found to vary from0.08–3.19 µSv y-1, with an average dose of 1.21 µSv y-1.

Keywords

Ingestion doseuraniumpackaged drinking waterlaser fluorimetry

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Type
Article
Information
Radioprotection , Volume 45 , Issue 1 , January 2010 , pp. 55 - 66
Copyright
© EDP Sciences, 2010

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