§ Mr. Carter-Jonesasked the Secretary of State for Local Government and
326Wthe Mediterranean in the preceding years were as follows:
1960 57,700 1961 136,400 1962 (January-June) 94,900 The numbers of immigrants admitted for settlement from the whole Commonwealth from 1st July, 1962 until the latest available date in 1969 are as follows:
Regional Planning if he is aware of the increase in carbon dioxide in urban atmosphere; if he will institute an urgent study into the control of air pollution; and if he will make a statement.
§ Mr. CroslandConcentrations of carbon dioxide in urban atmosphere are well below anything which in the light of present advice could have a harmful effect on public health, and there is no foreseeable likelihood of their becoming a public health problem. The major pollutants are smoke, grit, dust and sulphur oxides. Ground level concentration of all these has greatly diminished during the last decade.