Bard D, Tirmarche M, Pirard P
Laboratoire d'Epidémiologie et d'Analyse du Détriment Sanitaire, Département de Protection de la santé de l'Homme et de Dosimétrie, Institut de Protection et de Sûreté Nucléaire, BP N degrees 6, F-92265 Fontenay-aux-Roses Cedex.
Ann Pharm Fr. 2000 Dec;58(6):373-82.
Radon is a radioactive gas of natural origin. Its principal isotope is radon-222, stemming from uranium-238 present at various concentrations in all soils. Radon is found everywhere in the earth's atmosphere but has low reactivity by itself. Radon particulate daughters are however responsible for alpha irradiation of the bronchial epithelium. Epidemiologic studies on miners have shown long ago that radon exposure causes an increased risk of lung cancer in these workers. More recently, its risk associated with radon exposure was addressed in public dwellings. It is generally agreed that the risk of lung cancer is plausible in this setting. In particular, radon exposure in some dwellings may be comparable to that undergone by several uranium miner populations. However, simple and low-cost steps can be taken to significantly reduce radon exposure in dwellings.
氡是一种天然产生的放射性气体。其主要同位素是氡-222，源自存在于所有土壤中各种浓度的铀-238。氡在地球大气中无处不在，但其自身的反应活性较低。然而，氡的颗粒子体是支气管上皮细胞α辐射的原因。很久以前对矿工的流行病学研究表明，氡暴露会增加这些工人患肺癌的风险。最近，公共住宅中与氡暴露相关的风险也得到了关注。人们普遍认为，在这种情况下患肺癌的风险是合理的。特别是，一些住宅中的氡暴露可能与一些铀矿工人所遭受的暴露相当。然而，可以采取简单且低成本的措施来显著降低住宅中的氡暴露。
