RADON CONTAMINATION OF NATURAL-GAS IN A STORAGE CAVERN

Measurements of radon concentration in air and of the radon exhalation rate were made in an underground storage cavern for natural gas. Rela tively good agreement was observed between the average radon concentra tion calculated from the radon exhalation rate data (5 kBq m(-3)) and the average radon concentration measured using two different technique s (electret dosemeters: 7.2 kBq m(-3); Lucas cells: from 4.9 to 5.6 kB q m(-3)). The expected increase of indoor radon concentration due to t he combustion of natural gas is low. A conservative estimate gives 0.5 Bq m(-3) of equivalent equilibrium radon concentration. Copyright (C) 1996 Elsevier Science Ltd.