Research Article 
The Effect of Heat on Radio Iodine in Water in Sistan and Blouchestan
Province of Iran
S.A. Hosseini, A.A. Rakhsh Khorshid and M.E. Qureshi
Asian Journal of Applied Sciences, 2009, 2(3), 248-252.
Abstract
The study was conducted for the investigation of heat effect on radioactivity in the drinking water of chah-nimeh Station of Zaboul and Khatam hospital well for irrigating gardens of Zahedan in Iran. This drinking water supply has provided drinking water of Zahedan. The technique of Gamma Ray Counting was applied using I-125 detector. Activity concentration levels due to I125 was measured in 50 mL water samples collected at a volume of about 500 mL at the depth level of 0-25 cm with a step of 5 cm depth. It is resulted that activity concentration range of the concerned radio nuclides in case samples of Zaboul for 20, 30 and 40°C temperature of the drinking water were as follows: 6.08±0.08, 15±0.17 and 6.6±0.8 Bq L-1, respectively and control samples 5.6±0.08 Bq L-1 for any temperature. Radioactivity concentration from Khatam hospital well water case samples were 12±2, 14±2 and 13±5 Bq L-1, for 5, 10 and 15°C temperature, respectively. The slightly higher value of radio iodine in the drinking water of Zaboul city in case samples relative to control samples may be due to the use of temperature for case samples. Heating case samples causes raised radioactivity in Zahedan which support the result of drinking water. Knowledge of temperature variation effect on radio-iodine in water was particularly essential for estimating iodide group, especially I-129 transfer to fluvial systems and for successfully measuring radio-iodine in water studies Before the radiometric measurements, chemical analysis for concentration of Na, Ca and Mg was also carried out along with the measurement of electrical conductivity and pH of the water samples.
ASCI-ID: 61-54
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