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Dose limits recommended in ICRP 60
Exposure
Limits on effective dose
Limits on annual equivalent
doses
Occupational
exposure
20 mSv per year averaged over
defined 5 years (max 50 mSv over
one year)
The lens of the eye: 150 mSv
The skin: 500 mSv
The hands and feet: 500 mSv
Member of the
general public
1 mSv in a year
(special circum 5
mSv over one yr, provided an
average of 1mSv/yr for 5
consecutive yrs)
The lens of the eye: 15 mSv
The skin: 50 mSv
Special
situations
Emergency situations
a)
effective dose limit: 500 mSv
equivalent dose to the skin:5 Sv
Dose limit to unborn child
1 mSv for the period to birth
a) No limits are applicable in case of life saving activities.
•
A dose of 0.5 Gy (new threshold) could readily be exceeded on the basis of the current
equivalent dose limit for the lens of the eye of 150 mSv per year.
•
ICRP 2011-2012
recommend a dose limit to the lens of the eye of
2
v per year
averaged over defined 5 years (max 50 mSv over one year)
for Occupational
exposure.
•
No new limit has been recommended for
public exposur s
to the lens of the eye
(
1 mSv/year
was judged adequately protecti e).