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  Indian J Med Microbiol
 

Table 2: Activity concentration 222Radon and 222Radon progeny (in Bq/m3), 222Radon individual dose cumulative (work level months), excess lifetime cancer risk, International Commission radiation protection biological effects of ionizing radiation (National Research Council) VI – total group of population in occupational exposure, never smokers, exsmokers, and smokers[2],[10],[11],[12],[13]

Table 2: Activity concentration <sup>222</sup>Radon and <sup>222</sup>Radon progeny (in Bq/m<sup>3</sup>), <sup>222</sup>Radon individual dose cumulative (work level months), excess lifetime cancer risk, International Commission radiation protection biological effects of ionizing radiation (National Research Council) VI – total group of population in occupational exposure, never smokers, exsmokers, and smokers<sup>[2],[10],[11],[12],[13]</sup>