Unusually high indoor radon concentrations

Atmospheric Environment. Part A. General Topics Pub Date : 1993-10-01 DOI:10.1016/0960-1686(93)90046-2

O. Ennemoser , W. Ambach , P. Brunner , P. Schneider , W. Oberaigner , F. Purtscheller , V. Stingl

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引用次数: 6

Abstract

Measurements of indoor radon concentrations in the village Umhausen (2600 inhabitants, Ötztal valley, Tyrol, Austria) revealed unusually high indoor radon concentrations up to 274,000 Bq m⁻³. The medians measured on the basements were 3750 Bq m⁻³ in winter and 361 Bq m⁻³ in summer, those on the ground floors were 1180 Bq m⁻³ and 210 Bq m⁻³, respectively. Seventy-one per cent of the houses showed basement radon concentrations above the Austrian action level of 400 Bq m⁻³ in winter, 33% in summer. There are indications that the high radon concentrations are due to a giant rock slide about 8700 years ago. The unusually high radon concentrations in Umhausen coincide with a statistically significant increase in lung cancer mortality. For the period 1970–1991 the age and sex standardized mortality rate is 3.85 (95% confidence interval: 2.9 to 5.1). The control population is the total population of Tyrol (630,000 inhabitants).

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室内氡浓度异常高

对乌姆豪森村(奥地利蒂罗尔Ötztal山谷2600名居民)室内氡浓度的测量显示，室内氡浓度异常高，高达274,000 Bq m - 3。冬季地下室测量的中位数为3750 Bq m−3，夏季为361 Bq m−3，地面层测量的中位数分别为1180 Bq m−3和210 Bq m−3。71%的房屋的地下室氡浓度在冬季高于奥地利400bq m−3的行动水平，在夏季高于33%。有迹象表明，高氡浓度是由于大约8700年前的一次巨大的岩石滑动造成的。乌姆豪森异常高的氡浓度与肺癌死亡率的统计显著增加相吻合。1970-1991年期间，年龄和性别标准化死亡率为3.85(95%可信区间:2.9至5.1)。对照人口是蒂罗尔的总人口(63万居民)。

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Atmospheric Environment. Part A. General Topics

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