§ Mr. Pardoe
asked the Secretary of State for Social Services if he will state at June, 1970, prices the purchasing power of the National Insurance retirement pension for a single person, and for a retired couple, at the latest date for which figures are available and 1964, 1960, 1955, 1950, and 1945.
§ Mr. Anthony Grant
The monitoring of noise levels of aircraft taking off from Heathrow is at present carried out by mobile units, and while the arrangements themselves are satisfactory, we hope to improve the coverage from about 80 per cent. to nearer 100 per cent. of all takeoffs by the installation of an automatic system during 1971.