Effects of combustion products, passive smoking, VOC, formaldehyde, radondaughter, indoor microbes, and etc. on the people's health were analysed.
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。
2
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.