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首页> 外文期刊>The Science of the Total Environment >Beyond low-level activity: On a 'non-radioactive' gas mantle
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Beyond low-level activity: On a 'non-radioactive' gas mantle

机译：超越低水平活动：在“非放射性”气幔上

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摘要

Gas mantles for camping gas lanterns sometimes contain thorium compounds. During the last years, the use of thorium-free gas mantles has become more and more popular due to the avoidance of a radioactive heavy metal. We investigated a gas mantle type that is declared to be "non-radioactive" and that can be bought in Austria at the moment. Methods used were Instrumental Neutron Activation Analysis (INAA), γ-spectroscopy, and Liquid Scintillation Counting (LSC). We found massive thorium contents of up to 259 mg per gas mantle. Leaching experiments showed that only 0.4% of the Th but approximately 90% of the decay products of ~(232)Th can be leached under conditions simulating sucking and chewing with human saliva. In this paper, the investigation of these gas mantles including the consideration of the environmental hazard caused by disposed mantles and the health hazard for unsuspecting consumers is presented and legal consequences are discussed for this fraud.
机译：露营气灯的气罩有时含有th化合物。在最近几年中，由于避免了放射性重金属，无th气罩的使用变得越来越普遍。我们调查了一种宣称为“非放射性”且目前可以在奥地利购买的气幔类型。使用的方法有仪器中子活化分析（INAA），γ光谱和液体闪烁计数（LSC）。我们发现每个气幔中massive的含量高达259 mg。浸出实验表明，在模拟人类唾液的吮吸和咀嚼的条件下，仅能浸出约0.4％的Th，但约有90％的〜（232）Th衰减产物。在本文中，对这些气幔进行了调查，包括考虑了被处置的气幔对环境的危害以及对毫无戒心的消费者的健康危害，并讨论了这种欺诈行为的法律后果。

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