Territory Stories

Air and water concentrations of radon in Alice Springs and Santa Teresa houses, 1984



Air and water concentrations of radon in Alice Springs and Santa Teresa houses, 1984


Alcock, J. F.; Johnston, G.; Northern Territory. Department of Mines and Energy. Water Resources Division


E-Publications; PublicationNT; E-Books; Technical Report ; No. 11/1985




Made available via the Publications (Legal Deposit) Act 2004 (NT).


This report details results of integrated radon measurements taken in and around five houses at Alice Springs. Radon concentrations were measured in reticulated water supplies, household rooms and outdoor air. The reticulated water supply and bathroom air of two houses in Santa Teresa were also measured. The possible significance of the water supply as a source of indoor atmospheric radon is discussed. Recommendations for further reticulated water supplies discussed. sampling and implications for in the Northern Territory are discussed.


prepared by J. Alcock & G. Johnston

Table of contents

1. Introduction -- 2. Sampling programme -- 3. Analysis and results -- 4. Health -- 5. Conclusions and recommendations -- 6. Acknowledgements -- 7. References.




Water quality -- Northern Territory -- Alice Springs Region; Air quality -- Northern Territory -- Alice Springs Region; Radon measures

Publisher name

Department of Mines and Energy. Water Resources Division.

Place of publication

Alice Springs (N.T.)


Technical Report ; No. 11/1985


38 pages : illustrations and maps ; 30 cm.

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Related links

http://www.ntlis.nt.gov.au/hpa-services/techreport?report_id=WRA85011; Also available online in pdf format from NRETA maps http://www.ntlis.nt.gov.au/hpa-services/techreport?report_id=WRA85011; http://www.ntlis.nt.gov.au/hpa-services/techreport?report_id=WRA85011 [Also available online in pdf format from NRETA maps]

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Technical Report WRA85011 Viewed at 03:02:19 on 18/02/2010 Page 10 of 38. I I I I I I I I I I I I I I I I I I I I Recent reports in the literature have focused on groundwater supplies as a source of radon to domestic houses and the resultinq radiation doses to occupants {References 6,-7,8,9 and 1 0 ) Dickson et. al.,. (Reference 11 ),in a study of radium-226 content of Australian spa wate~s note that the radiation hazard presented by radon-222 dissolved in spa water would not be insignificant and recommend monitoring of radon-222 and dauqhters to assess exposure to workers. Kahlos and Asikainen, (Reference 12), conclude in a study of internal Finland, radiation doses from radioactivity of drinking water in that drinking water is a significant factor in increasing the radiation exposure of the population using drilled wells. Prichard and Gesell, (Reference 13), studied radiation exposure caused by dissolved radon-222 to inhabitants of Houston (United States of America) and found exposure to radon daughters through inhalation to be more significant than exposure caused by ingestion of water containing radon. The average radon-222 concentration in the water supply was 16.67 Bq/L resulting in an average exposure of 2.4 mWLM per annum. In summary, during the last few years increasing numbers of studies have found that radiation hazards associated with high levels of radon in groundwaters are significant and may need to be addressed, particularly in temperate climates where enerqy conservation is practised. A previous study of radium-226 content of drinkinq water supplies for the maior communities in the southern portion of the Northern Territory found appreciable quantities of radiurn-226, although no concentration exceeded the recommended drinking water level (Reference 14). ov~rseas studies have shown that qenerally areas having high radium concentrations in .... ~ater will also have high radon levels, but that no significant correlation between radium concentrations and radon concentrations in water can he assumed to exist (Reference 10). 7

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