Performance of a commercial radon-in-water measurement kit.
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%.
Kitto
Michael E
ME
Wadsworth Center, New York State Department of Health, Albany, NY 12201, USA. kitto@wadsworth.org
Fielman
Eileen M
EM
Haines
Douglas K
DK
Menia
Traci A
TA
Bari
Abdul
A
D011886:Radon / Q000032:analysis*; D012588:Scintillation Counting; D014875:Water Pollutants, Radioactive / Q000032:analysis*
D014875:Water Pollutants, Radioactive; D011886:Radon