摘要
本文简述辽宁省16个矿山井下氡浓度的测试结果。矿山井下氡浓度近似对数正态分布，算术均值为559．5Bq·m－3，范围为6．6～1．2×104Bq·m-3。约有10％的测量点超过了IAEA对工作场所新建议的行动水平1000Bq·m－3。探讨了有关氡的危害及其防护的对策问题。
The measurement results of radon concentration in pits of 16 mines in Liaoning area are de-scribed. It is found that the distributions of radon concentration in pits are approximate1y Log-normal. The arithmetic average is 559. 51Bq ·m-3with a range of 6. 6-1. 2× 104 Bq·m-3,and with 10%of the sample in pits having a radon levels exceeding 1000 Bq·m-3. The questions on danger ofradon exposure and protection against radon are inquired.
出处
《工业卫生与职业病》
CAS
CSCD
1997年第6期334-337,共4页
Industrial Health and Occupational Diseases
关键词
矿山井下
氡
Mine pit
Radon level
Protection against radon
