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Int. J. Environ. Res. Public Health 2014, 11(11), 11121-11131; doi:10.3390/ijerph111111121

Radon Concentrations in Drinking Water in Beijing City, China and Contribution to Radiation Dose

1
Key Laboratory of Radiological Protection and Nuclear Emergency, National Institute for Radiological Protection, Chinese Centre for Disease Control and Prevention, Beijing 100088, China
2
Institute for Radiological Protection, Beijing Centre for Disease Control and Prevention, Beijing 100013, China
*
Author to whom correspondence should be addressed.
Received: 30 June 2014 / Revised: 14 October 2014 / Accepted: 15 October 2014 / Published: 27 October 2014
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Abstract

222Rn concentrations in drinking water samples from Beijing City, China, were determined based on a simple method for the continuous monitoring of radon using a radon-in-air monitor coupled to an air-water exchanger. A total of 89 water samples were sampled and analyzed for their 222Rn content. The observed radon levels ranged from detection limit up to 49 Bq/L. The calculated arithmetic and geometric means of radon concentrations in all measured samples were equal to 5.87 and 4.63 Bq/L, respectively. The average annual effective dose from ingestion of radon in drinking water was 2.78 μSv, and that of inhalation of water-borne radon was 28.5 μSv. It is concluded that it is not the ingestion of waterborne radon, but inhalation of the radon escaping from water that is a substantial part of the radiological hazard. Radon in water is a big concern for public health, especially for consumers who directly use well water with very high radon concentration. View Full-Text
Keywords: radon; drinking water; well water; public water; radiation dose radon; drinking water; well water; public water; radiation dose
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Wu, Y.-Y.; Ma, Y.-Z.; Cui, H.-X.; Liu, J.-X.; Sun, Y.-R.; Shang, B.; Su, X. Radon Concentrations in Drinking Water in Beijing City, China and Contribution to Radiation Dose. Int. J. Environ. Res. Public Health 2014, 11, 11121-11131.

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