Polonium-210 in Tobacco and Lung Cancers
香烟中的钋-210与肺癌

Besides the carcinogenic compounds of armatic hydrocarbons and mutagens, tobacco also contains several radioactive nuclides, among which 210Po can be inhaledinto human recpiratory system, and causes the risk of lung cancers. This article introduces radioactive levels of 210Po in tobacco in China and other countries, the results of animal tests in which the animals that inhaled smog containing 210Po led to come on of lung cancers, and estimation of carcinogenesis caused by lower dose a particle exposure.