title: Distribution of uranium in drinking water and associated age-dependent radiation dose in India.
abstract: Exposure due to natural radiation is of particular importance because it accounts for the largest contribution (nearly 85 %) to the total collective dose of the world population. An attempt has been made to present the feasibility of uranium occurrence in drinking water samples from different states of India, by laser-induced fluorimetry. The associated age-dependent radiation dose was estimated by taking the prescribed water intake values of different age groups. The concentration of uranium obtained, i.e. 0.1 +/- 0.01 to 19.6 +/- 1.8 microg l(-1), is well below the drinking water guideline value of 30 microg l(-1). The annual ingestion dose due to uranium in drinking water for various age groups is found to vary from 0.14 to 48 microSv y(-1).
authors.affiliation: Environmental Assessment Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India. sksbarc@gmail.com
authors.forename: S K
authors.initials: SK
authors.lastname: Sahoo
authors.forename: S
authors.initials: S
authors.lastname: Mohapatra
authors.forename: A
authors.initials: A
authors.lastname: Chakrabarty
authors.forename: C G
authors.initials: CG
authors.lastname: Sumesh
authors.forename: V N
authors.initials: VN
authors.lastname: Jha
authors.forename: R M
authors.initials: RM
authors.lastname: Tripathi
authors.forename: V D
authors.initials: VD
authors.lastname: Puranik
mesh_terms: D000367:Age Factors; D001822:Body Burden; D004307:Dose-Response Relationship, Radiation; D005470:Fluorometry; D006801:Humans; D007834:Lasers; D011834:Radiation Monitoring; D012062:Relative Biological Effectiveness; D014501:Uranium / Q000032:analysis*; D014875:Water Pollutants, Radioactive / Q000032:analysis*; D014881:Water Supply / Q000032:analysis*
chemical_list: D014875:Water Pollutants, Radioactive; D014501:Uranium