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氡防护知识

氡对人体的危害是什么

关键词:氡对人体的危害 网址:cdy.zgfangfuyuan.com 日期:2016/7/14 11:13:15

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氡对人体的危害是什么

确定性效应表现为:在高浓度氡的暴露下,集体出现血细胞的变化。氡对人体脂肪有很高的亲和力,特别是氡与神经系统结合后,危害更大。


随机效应主要表现为肿瘤的发生。由于氡是放射性气体,当人们吸入体内后,氡衰变发生的阿尔法粒子可在人的呼吸系统造成辐射损伤,诱发肺癌。专家研究表明,氡是除吸烟以外引起肺癌的第二大因素,世界卫生组织把它列为19种主要的环境致癌物质之一,国际癌症研究机构也认为氡是室内重要致癌物质。

氡的来源

氡的分布很广,每天都在你的周围,它存在与家家户户的房间里。据检测,美国几乎有十五分之一的家庭氡含量较高。了解室内高浓度氡的来源,有助与我们对氡的认识和防治。调查表明,室内氡的来源主要有以下几个方面:


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