PDF
Full
Outline
In order to understand the current situation of the air absorption dose rate level from terrestrial γ-radiation in Yinchuan, master the distribution pattern of surface γ-radiation，evaluate the external exposure level of residents，gradually establish and improve the environmental radiation background database of the whole city of Yinchuan，Ningxia，and provide technical support for ensuring the health and safety of the public and the development of urban construction，and provide a basis for government decision-making, Evenly measuring grid method was used to cover the measurement area of the air absorption dose rate of surface γ-radiation in Yinchuan city. The dose rate levels of different administrative regions，different environmental conditions，different soils and materials in Yinchuan city were collected and summarized, the effective dose received by residents was estimated. The survey results indicate that the average terrestrial gamma radiation absorbed dose rate in Yinchuan (after deducting cosmic ray contributions) is 48.67 nGy·h-1，primarily attributed to 40K. This value closely aligns with the regional average in Ningxia Hui Autonomous Region but is significantly lower than the national average. The resultant annual effective dose to the public is calculated as 0.30 mSv，which is lower than both the per capita annual dose from terrestrial radiation in China (0.46 mSv) and the outdoor gamma radiation dose in Ningxia (0.55 mSv).
PDF
261
109
| 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 |
关闭全屏
No. 86 Xueyuan South Road, Haidian District, Beijing
010-62199257
qkjq@cast.org.cn
Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House
