Radiation exposure, dose limits, Germany
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Dose value of an ionizing radiation fixed by the legislator as a maximum
to which a person may be exposed based on recommendations from scientific
committees. Different dose limit values are fixed for different groups
of persons. When handling radioactive substances and ionizing radiation
the principle that any unnecessary radiation exposure is to be avoided
must be observed and if unavoidable it is to be kept as low as possible,
even when within the legal limit values. The German Radiation Protection
Ordinance and the X-Ray Ordinance fixes the limit values for occupationally
exposed persons as listed in the table. Lower values apply for occupationally
exposed pregnant women and apprentices.
Tissue or organ |
Limit |
Effektive dose |
20 mSv/year |
Organ dose: |
|
Bone marrow (red), gonads, uterus |
50 mSv/year |
Adrenals, bladder, brain, breast, lens of the eye, small intestine,
upper large intestine, kidney, liver, lung, muscle, oesophagus,
pancreas, spleen, stomach, thymus |
150 mSv/year |
Bone surface, thyroid |
300 mSv/year |
Ankles, feet, forearms, hands, skin |
500 mSv/year |
Dose limits in Germany for occupationally exposed
persons
The effective dose for members of the public must
not exceed 1 mSv/year. The limit for the lens of the eye is 15 mSv/year
and for the skin 50 mSv/year.
Nuclear power plants must not exceed radioactive emissions
from exhaust air or waste water which result in:
Effective dose and dose for gonads, uterus, bone
marrow (red) |
0.3 mSv/year |
Dose for adrenals, bladder, brain, breast, small
intestine, upper large intestine, kidney, liver, lung, muscle,
oesophagus, pancreas, spleen, stomach, thyroid, thymus |
0.9 mSv/year |
Dose for bone surface, skin |
1.8 mSv/year |
These dose limits shall be observed at the most unfavourable point of
effect, taking account of all relevant load paths, the dietary and lifestyle
habits of the reference person in addition to any possible prior contamination
by other plants and facilities.
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TopSafe 2017
12-16 Feb. 2017
Vienna, Austria |
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19 - 22 March 2017, Middelburg Netherlands |
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14 - 18 May 2017 in Rotterdam, Netherlands |
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30 May - 2 June 2017, Valencia, Spain |
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