Summary
One of the high-level natural radiation areas (HLNRAs) in Iran is located in the south of Iran in the Hormozgan province. Uranium and its daughters, such as radium and thorium cause areas of elevated natural radiation. An unknown hypothermal mineral and radioactive spring was discovered containing high-level radiation, 42 mSv . y-1 maximum effective dose around spring was measured. 40K, 226Ra and 232Th radionuclides were detected with the maximum activity of 11.80 Bq . l-1, 3.48 Bq . l-1 and 2.52 Bq . l-1, respectively. These activities are the second highest in comparison to those in the Ramsar radioactive springs, especially Ab-e-siah spring, which contains 146.5 Bq . l-1 activity. Ocillatoria spp., Lyngbya spp. and a kind of ciliatawere observed in this spring. The results showed that the radioactive spring falls into the sodium chloride category.
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Dabbagh, R., Ghafourian, H., Baghvand, A. et al. Discovery of the second highest level of radioactive mineral spring in Iran. J Radioanal Nucl Chem 269, 91–94 (2006). https://doi.org/10.1007/s10967-006-0235-1
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DOI: https://doi.org/10.1007/s10967-006-0235-1