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香烟中含有大量的放射物质。每天抽1包半香烟者,一年中其肺相当于正常人经受300次X线胸透的放射量。吸烟之所以诱发肺癌,关键就是香烟的放射性所致。香烟中所含的放射性元素,与烟农使用含铀磷肥有关。土壤
Cigarettes contain a lot of radioactive material. A pack of semi-cigarettes smoked a day, one year in the lung equivalent to normal lung 300 times X-ray radiation. The reason why smoking causes lung cancer, the key is the radioactive due to cigarettes. The radioactive elements contained in cigarettes are related to the use of uranium-bearing phosphate by tobacco farmers. soil