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  • Title: Performance of a commercial radon-in-water measurement kit.
    Author: Kitto ME, Fielman EM, Haines DK, Menia TA, Bari A.
    Journal: J Environ Radioact; 2008 Aug; 99(8):1255-7. PubMed ID: 18420317.
    Abstract:
    Methods currently approved for the measurement of radon ((222)Rn) in water in New York State are liquid scintillation counting and emanation into alpha-scintillation cells. A passive system using an electret ion chamber (EIC) was evaluated as an alternative for the measurement of radon in water. Over 130 water samples from a community water supply containing 32BqL(-1) and 30 standards containing 686BqL(-1) were measured using the EIC method over 1- to 4-day exposure times. For comparison, identical samples were measured using liquid scintillation counting. Results of duplicate samples were typically within 5% for liquid scintillation counting and within 10% for the EIC. With respect to accuracy, the EIC produced results that were consistently low by 11-15%.
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