§ Mr. Frank Cookasked the Paymaster General in what ways the dose limits for occupational exposure to ionising radiation for individual body organs specified in the Ionising Radiation Regulations 1985 differ from the recommendations of the International Commission on Radiological Protection; and if he will make a statement.
§ Mr. TrippierThe dose limits for individual organs for employees aged 18 years or over as specified in the Ionising Radiations Regulations 1985 do not differ from the recommendations of the International Commission on Radiological Protection.
§ Mr. Frank Cookasked the Paymaster General what will be the maximum permitted exposure arising from the exposure of a single organ of the body of a worker to ionising radiation.
§ Mr. TrippierThe dose limits for individual organs depend on the organ concerned, for example:
mSv/year gonads 200 breast 330 red bone marrow 420 lung 420 thyroid 500 bone surfaces 500
§ Mr. Frank Cookasked the Paymaster General what would be the maximum annual permissible dose of ionising radiation to the following organs, if exposed singly, that would be consistent with the recommendations of the International Commission on Radiological Protection that the whole body effective dose equivalent not exceed 50 mSv/yr: lung, thyroid, bone, gonads, breast and red marrow.
§ Mr. TrippierThe information requested is:
mSv Lung 420 Thyroid 1,670 Bone surfaces 1,670 Gonads 200 Breast 330 Red marrow 420 In practice, the limit for the thyroid and for bone surfaces would be the individual organ dose limit, namely 500 mSv in one year.
§ Mr. Frank Cookasked the Paymaster General whether, in the event of a worker receiving a dose of 500
Unemployed claimants in the London borough of Newham 11 April 1985 11Jully 1985 10 October 1985 9 January 1986 Under 25 years 6,363 6,334 6,623 6,646 25 to 39 5,416 5,387 5,481 5,763 40 to 59 4,390 4,477 4,515 4,714 Total unemployed 16,952 16,787 17,217 17,664
§ Mr. Tony Banksasked the Paymaster General how many people in the London borough of Newham have been unemployed for (a) less than six months, (b) six months to one year, (c) one year to two years and (d) over two years.
54WmSv to his or her lungs as permitted under schedule II to the Ionising Radiation Regulation 1985 a whole body effective dose equivalent greater than 50 inSv, as permitted under the same schedule of the regulations will result; whether a similar organ dose of 500 mSv to breast, red marrow or gonads would also result in a whole body exposure greater than 50 mSv effective dose equivalent; and if he will make a statement.
§ Mr. TrippierA 500 mSv dose to the lungs. breast, red marrow or gonads would result in a whole body effective dose equivalent greater than 50 mSv.
However, in practice, the overriding whole body effective dose equivalent limit would be reached first.