HC Deb 22 July 1971 vol 821 c346W
Mr. Mather

asked the Secretary of State for Trade and Industry when the results of noise monitoring so far at Heathrow and Gatwick airports this year are to be published.

Mr. Noble

Figures for the first quarter published on Tuesday show that the average of day-time infringements was maintained at under 1 per cent. of total movements. In April and May day-time infringements at Heathrow were only a fraction of 1 per cent., while at Gatwick there were no infringements in either month.

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