分析了燃烧产物，被动吸烟、VOC、甲醛、氡及其子体、室内微生物对人体健康的危害。
Effects of combustion products, passive smoking, VOC, formaldehyde, radon daughter, indoor microbes, and etc. on the people's health were analysed.
氡及其子体是铀、钍等放射性元素产物，是引发肺癌的重要致病因子。
The radon and its daughter elements are the decay products of the radioactive elements such as uranium and thorium and the important carcinogenic factor of causing the lung cancer.
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