Rn-222 in the water distribution system of Tucson, Arizona

R.M. Kalin, B.D. Smith, A. Long

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A study of Rn-222 concentrations in the water distribution system of Tucson, Arizona, revealed levels of 60 to 1260 pCi/L in domestic waters. These measurements are comparable to levels of between 80 and 1400 pCi/l for Rn-222 found in ground water samples in the North-Central Tucson basin (Kalin et al., 1994). Estimated loss of Rn-222 due to radioactive decay during travel from the well head to the home ranges from 8 to 50 percent.
Original languageEnglish
Pages (from-to)629-635
Number of pages7
JournalJournal of the American Water Resources Association
Issue number3
Publication statusPublished - 1 Jun 1996


  • radon
  • water quality
  • ground water hydrology
  • public water supply

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