Abstract
Water is the most important substance for life. Mineral waters are widely used as drinking water, and so that, it is important to determine the radon levels, and its risk in drinking water for public health and radiation protection. Radon concentration has been measured in the bottled natural mineral water samples commercially available in the Egyptian local market, using closed can technique. Radon concentration in water samples ranged from 0.93 - 6.89 Bql-1 and total annual effective dose ranged from 3.49 - 25.93 µSvy-1. The results indicate that radon concentrations in water samples lower than the recommended limit 11.1BqL-1 by EPA, and the annual effective dose of the samples are lower than the permissible international limit by EPA and WHO. The obtained results indicate that there is no significant public radiological risk related to radon ingested with drinking water in the present study.
Highlights
IntroductionRadon is a naturally occurring radioactive element
Radon is the main source of natural radiation exposure
Drinking water contains several natural radionuclides, for this investigation, samples of bottles mineral waters of those consumed by the population were bought from the Egyptian local market and were measured to determine the radon concentration, and annual effective doses of inhalation and ingestion of water, using closed can technique with CR-39 detector
Summary
Radon is a naturally occurring radioactive element. It is a colourless, odourless and chemically inert gas and has no taste. Odourless and chemically inert gas and has no taste It can only be measured with special equipment. Assessment of natural radioactivity in drinking water has been done in different countries, to determine the risk resulting from consuming water, because it used for drinking, irrigation, swimming, and some industries. Natural water is a chemical system contains in its composition some group of gases, mineral, and organic materials. Consumers choose this alternative because they dislike the taste of chlorinated tap water [4, 5]. Dissolved radionuclides in water emit radon, which gradually affect living tissues, because the radon derived from ingested water penetrate inside the body
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