asked the Secretary of State for Trade if he will list the airports for which he has made noise-insulation schemes for houses in the vicinity, and if he will give the average amount of noise-insulation grant under such schemes in each of the last five years.

The Secretary of State has made noise insulation grant schemes for dwellings around Heathrow and Gatwick airports. The average amount of grant paid under these schems, which closed to new applications on 31 December 1977, is a matter for the British Airports Authority.