Browse > Article

Natural Radon Removal Efficiency of Small-scale Water Supply System  

Cho, Byong-Wook (Korea Institute of Geoscience and Mineral Resources (KIGAM))
Yun, Uk (Korea Institute of Geoscience and Mineral Resources (KIGAM))
Choo, Chang-Oh (Department of Earth and Environmental Sciences, Andong National University)
Publication Information
Economic and Environmental Geology / v.43, no.1, 2010 , pp. 33-42 More about this Journal
Abstract
The purpose of this study was to understand the degree of natural radon removal efficiency of small-scale water supply systems. Six sites were selected for this study, and data on well characteristics (depth, pumping rate, water tank capacity, distance from well to tap water) were obtained. Water samples both from raw water and three tap waters at each site were collected and analyzed for radon concentration. Average radon removal efficiency of the five sites (A-E) in Nov. 2006 was 26.0% while that of the same sites in Dec. 2006 was 45.6% indicating seasonal difference in natural radon removal efficiency. Meanwhile short-term (April 23, April 30, May 8, 2007) radon removal efficiency from the site F was 44.1-49.0%, implying only a little difference in natural radon removal efficiency. The degree of radon removal at tap water was influenced mainly by pumping rate rather than distance from the well and water tank capacity.
Keywords
radon; removal efficiency; alternative maximum contaminant level (AMCL); small-scale water supply system; tap water;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 조병욱, 성익환, 조수영, 박선구 (2007) 국내 지하수의 라돈함량 예비조사. 지하수토양환경학회지,v.12, n.5, p.98- 104.
2 EPA (1999a) National primary drinking water regulations; Radon-222 Proposed rule. Federal Register, v.64, n.211, FR 59246.
3 EPA (2003) National Primary Drinking Water Standards.
4 Han, J.H. and Park, K.H. (1996) Abundances of uranium and radon in groundwater of Taejeon area. Econ. Environ. Geol, v.29, n.5, p.589-595.
5 Harris, S.A., Billmeyer, E.R. and Robinson, M.A. (2006) Evaluation of repeated measurement of radon-222 concentration in well water sampled from bedrock aquifers of the Piedmont near Richmond, Virginia, USA:Effects of lithology and well characteristics. Environment Research, v.101 p.323-333.   DOI   ScienceOn
6 Loomis, D.P., Watson, J.E. and Crawford-brown, D.J. (1988) Predicting the occurrence of radon-222 in groundwater supplies, Environmental Geochemistry and Health. v.10 n.2, p.41-50.   DOI
7 Joo, S.H. and Je, W.M. (1995) Radon radioactivity and environment, Kechugmunhwa Publisher. 288p.
8 NEMA (2006) Development of risk assessment and mitigation technique for uranium and radon from geologic environment. NEMA-04-NH-03, 212p.
9 Health Canada (1995) Guidelines for Canadian drinking water quality: Supporting documentation.
10 SSI (1999) Radon legislation and national guidelines.
11 National Research Council (1999) Risk assessment of radon in drinking water. National Academies Press, Washington.
12 Ministry of Environment (2005) Statistics of the smallscale water supply system (2004).
13 Alabdula'aly, A.I. (1994) Radon levels in a water distribution network. Jour. Environmental Radioactivity, v.37, p.215-221.
14 EPA (1999c) Radon in drinking water health risk reduction and cost analysis. 64 Federal Register 9560.
15 NIER (2001) Study on the radionuclides concentrations in the groundwater(3). NIER Report, 388p.
16 NIER (2002) Study on the radionuclides concentrations in the groundwater(4). NIER Report, 357p.
17 NIER (2006) A study on the radionuclides concentrations in the groundwater. NIER Report, 200p.
18 STUK (2005) 238U-series radionuclides in Finnish groundwater-based drinking water and effective doses. STUK-A123.
19 Barcelona, M.J., Gibb, J.P., Helfrich, J.A. and Garske, E.E. (1985) Practical guide for groundwater sampling. SWS Contract Report, 374p.
20 EPA (1999b) Technologies and costs for the removal of radon from drinking water.
21 NIER (2008) A detailed study of the radionuclide concentration in the groundwater. NIER Report, 293p.