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Outline
The activity concentrations of 238U and 226Ra in soil, and the activity concentrations of 238U, 226Ra 210Po, 210Pb in rice near the uranium mine in Guangxi from 2016 to 2021, were investigated and evaluated. Spearman rank correlation coefficient analysis showed that 238U, 226Ra, 210Po, 210Pb in the soil and rice around the uranium mine had not obviously changed from 2016 to 2021. Most of the sampling sites were pollution-free to medium-polluted. The rate of contribution in effective dose to be accumulated decreased in the order of 210Po, 210Pb, 226Ra and 238U, and the USEPA health risk model showed that the total health risk was lower than the unacceptable value.
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| 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 |
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