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S Hazrati, M Barak, M Alighadri,
Volume 4, Issue 3 (10-2011)
Abstract

Background and Objectives: Gamma rays, the most energetic photons within the any other wave in the electromagnetic spectrum, pose enough energy to form charged particles and adversely affect human health. Provided that the external exposure of human beings to natural environmental gamma radiation normally exceeds that from all man-made sources combined, environmental gamma dose rate and corresponding annual effective dose were determined in the cities of Ardabil and Sar Ein.
Materials and Methods: Outdoor environmental gamma dose rates were measured using an Ion Chamber Survey Meter in 48 selected locations (one in city center and the remaining in cardinal and ordinal directions) in Ardabil and Sar Ein. Ten more locations were monitored along the hot springs effluent in Sar Ein. Measurements of gamma radiation dose rate were performed at 20 and 100 cm above the ground for a period of one hour.
Results: Average outdoor environmental gamma dose rate were determined as 265, 219, and 208  for Ardabil, Sar Ein, and along the hot spring effluent, respectively. The annual affective dose for Ardabil and Sar Ein residents were estimated to be 1.45 and 1.39 mSv, respectively.
Conclusion: Calculated annual effective dose of 1.49 and 1.35 are appreciably higher than the population weighted average exposure to environmental gamma radiation worldwide and that analysis of soil content to different radionuclide is suggested.


Taha Mohammadhoseini, Hossein Saadati, Gebraeil Nasl Saraji ,
Volume 15, Issue 4 (3-2023)
Abstract

Background and Objective: Considering the significant number of injured people in spas, the main goal of this research is to provide a model for measuring and managing risk in spas.
Materials and Methods: To prepare the conceptual model of risk, four steps were taken, which include determining the general outline of the model, identifying the parameters, evaluating and scoring the parameters based on the questionnaire, using the hierarchical analysis method, and evaluating and determining the final risk of the pools. According to the allowed standard range of each parameter, five ranges for each parameter were obtained based on the obtained weights, health, safety and environmental risk classes. Finally, by summing up these parameters, the final score of the risk of using each pool is obtained. In order to evaluate the presented model, the risk value of hot mineral water pools in Ardabil province was obtained with the innovative method of this research.
Results: According to the results, according to the risk score, Gutursoi and Gamish-Goli spas have an unacceptable risk level, while Qainarjeh, Shabil, Barjelo and Sablan spas are at a high-risk level.
Conclusion: The presented model was validated with the evidence of forensic events. According to the results of the conceptual model of risk and the score obtained for each component and sub-components, appropriate solutions were presented, including the need to modify the current standards in each spa.


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