Abstract: In order to understand the exposure level of miners exposed to radon radioactive hazards in metal mines in Anhui province,ten representative metal mines in Anhui province were selected to investigate and measure radon concentration radioactive levels,and the risk of lung cancer caused by miners exposed to radon was studied. Select the location where mine and ground personnel often stay or pass by,place built-in CR-39 solid track detector,monitor for one month,and then measure the accumulated radon concentration in the laboratory through the solid track measuring system. The average radon concentration of 10 metal mines in this survey is all greater than 100 Bq / m3 except for Mine H,Among them,the average concentration of underground radon in mine E reached 354 Bq / m3,and the maximum concentration of underground radon in the measured location reached 646 Bq / m3. Through analysis of variance,there was no statistical difference between the measured results of surface and underground radon concentration in 10 mines,but there was statistical difference between mine E and the other 9 mines (P <0. 05). The radon concentration of E mine is significantly higher than that of the other nine mines. The investigation and measurement results show that the concentration of radon in non-uranium metal mines in Anhui Province is higher than that in normal indoor radon concentrations. Measures such as strengthening ventilation should be taken to reduce the risk level of lung cancer caused by radon exposure in miners.

Key words: metal mines,radon concentration,lung cancer,radioactivity level