Associated radioactive solid waste is generated by associated mining enterprises during mining, beneficiation, and smelting processes. If not stored properly, it may pose potential radiation safety risks to the environment. To effectively assess the radiation impact on operators during the loading, unloading, and stacking of associated radioactive solid waste, this paper selects the waste storage process of an existing temporary storage facility for associated radioactive solid waste as an example. The radiation hazard factors evaluated mainly include γ rays generated by the decay of natural radionuclides in the associated solid waste and 222Rn generated by the decay of radionuclides. The evaluation results show that the γ radiation dose rate at external attention points of the waste temporary storage facility is less than 2.5 μGy/h, and the maximum annual radiation dose to operators does not exceed 4.1 mSv/a, which is in compliance with relevant regulations. The results indicate that after adopting certain shielding and ventilation measures in the associated solid waste temporary storage facility, the radiation dose to operators can be effectively controlled, reducing radiation safety risks.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |