title: ASSESSMENT OF AGE-DEPENDENT RADIATION DOSE DUE TO INTAKE OF URANIUM AND THORIUM IN DRINKING WATER FROM SIKAR DISTRICT, RAJASTHAN, INDIA.
abstract: The concentrations of238U and232Th have been determined in drinking water samples collected from the Sikar district of Rajasthan State, India. The samples have been analysed by using high-resolution inductively coupled plasma mass spectrometry.238U content in water samples ranged from 8.20 to 202.63 µg l-1and232Th content ranged from 0.57 to 1.46 µg l-1The measured238U content in 25 % of the analysed samples exceeded the World Health Organization (WHO) and United States Environmental Protection Agency drinking water guidelines of 30 µg l-1and 12.5 % of the samples exceeded the 60 µg l-1Indian maximum acceptable concentration recommended by the Atomic Energy Regulatory Board, India. The annual effective doses (µSv y-1) due to ingestion of238U and232Th for different age groups were also calculated. The results compared with the recommended value reported by the WHO.
authors.affiliation: Department of Applied Sciences, Guru Kashi University, Talwandi Sabo 151302, Punjab, India vikasduggal86@gmail.com.
authors.forename: Vikas
authors.initials: V
authors.lastname: Duggal
authors.affiliation: Department of Applied Sciences, FCET, Ferozshah, Ferozpur 142052, Punjab, India.
authors.forename: Asha
authors.initials: A
authors.lastname: Rani
authors.affiliation: CSIR-National Geophysical Research Institute, Hyderabad 500007, India.
authors.forename: V
authors.initials: V
authors.lastname: Balaram
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D060766:Drinking Water / Q000032:analysis*; D005260:Female; D005843:Geography; D005844:Geology; D006801:Humans; D007194:India; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D011834:Radiation Monitoring / Q000379:methods*; D011835:Radiation Protection; D013910:Thorium / Q000032:analysis*; D014501:Uranium / Q000032:analysis*; D014875:Water Pollutants, Radioactive / Q000032:analysis*; D055815:Young Adult
chemical_list: D060766:Drinking Water; D014875:Water Pollutants, Radioactive; D014501:Uranium; D013910:Thorium