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A survey of radon-222 in ground water from the Sherwood Sandstone Aquifer: Belfast and Newtownards, Northern Ireland

Gibbons, D. and Kalin, R. (1997) A survey of radon-222 in ground water from the Sherwood Sandstone Aquifer: Belfast and Newtownards, Northern Ireland. Ground Water Monitoring and Remediation, 17 (2). pp. 88-92.

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Abstract

A study of radon-222 in ground water in Northern Ireland has revealed a range of concentrations from 5.8Bql(-1) to 36.6Bql(-1) (158pCil(-1) to 989 pCil(-1)). Radon-222 was measured using a portable degassing system with scintillation cells and a portable radiation detector. Twenty-six samples were taken within the Sherwood Sandstone Aquifer underlying Belfast and Newtownards. County Down. All samples collected were below the National Radiological Protection Board (NRPB) suggested limit of 100Bql(-1). Several hypotheses were considered for the distribution pattern in the sandstone, the most probable being the presence of faults and lithological differences.