§ Mr. Kitsonasked the Chief Secretary to the Treasury what is the danger level of radioactive contamination; if he will publish the figures of human and animal experiments; and what dose of radioactivity is liable to cause leukaemia.
§ Mr. Boyd-CarpenterThe International Commission on Radiological Protection have recommended maximum permissible levels of radiation exposure for various circumstances and particular groups of the population. These recommendations are summarised and discussed in the second report by the Medical Research Council on "The Hazards to Man of Nuclear and Allied Radiation" (Cmnd. 1225, 1960).
The results of experimentation relating to radiation hazards are published in the scientific Press. The more important references are given in the 1962 Report of the United Nations Scientific Com-
112Wis not always identical with any one local authority area and separate figures are not readily available of the dwellings so built within the designated areas. The figures for the whole of the local authority areas are however given in the recently published Housing Return (Cmnd. 2169).
mittee on the Effects of Atomic Radiation and in the Medical Research Council report referred to above.
It is impossible to state with precision the radiation dose which will cause leukaemia in man.