Abstract
Natural radioactive materials have a negative impact on public health, especially on people exposed to the sun on beaches. Due to the high temperature in Makkah Al-Mukarramah region, many people resort to going to the sea, and regarding the risks that the public is exposed to, we focus our research on studying and drawing a radiation map of the Red Sea beaches. Also, identify the risks that the public is exposed to while on the various beaches. The study was carried out using a CR-39 solid-state nuclear track detector. The results showed that the average concentration of radon gas on the beaches of Jeddah was 481.34 ± 40.63 Bq / cm3, while the average concentration of radon gas in the city of Al-Qunfudhah was 282.36 ± 38.40 Bq / cm3. 10% of the radon gas concentration values were higher than the safe limit. The mean values for radium for all measured samples were 4.41 ± 0.61 Bq/kg, while the mean values for uranium were 0.22 ± 0.03 ppm. All radium and uranium values were within the internationally permitted limits. The results of the measured beaches indicate that the Red Sea beaches in the Makkah Al-Mukarramah region are safe for use and do not have high life-threatening rates, except for Al-Hamra Corniche Beach in Jeddah, which was higher than permissible. It is recommended to monitor the beach and remove any waste so that its percentage on the beach does not increase. It is also recommended to complete the study on the rest of the Red Sea beaches.
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