A REVIEW OF ALL SOURCES OF EXPOSURE TO NATURAL RADIATION IN UK MINES
The results of measurements of short-lived airborne activity, gamma radiation dose rates and activity concentrations of rock samples in eight UK non-coal mines are presented. The data are used to estimate annual doses from thoron daughters, gamma radiation and inhalation and ingestion of dust. The highest estimated doses occur in mines in igneous regions and could amount to about 5 mSv from all sources. It is suggested that within the 50 mSv annual dose equivalent limit an allowance of 10 mSv would be generous for sources other than radon daughters which could then be controlled in relation to an annual exposure of 4 WLM.
Bibliographic Reference: INTERNATIONAL CONFERENCE ON OCCUPATIONAL RADIATION SAFETY IN MINING, TORONTO (CANADA), OCT. 14-18, 1984 WRITE TO CEC LUXEMBOURG, DG XIII/A2, POB 1907 MENTIONING PAPER E 31818 ORA
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Record Number: 1989123005700 / Last updated on: 1987-01-01
Available languages: en