§ Mr. Spearingasked the Secretary of State for Defence what steps the Meteorological Office has taken, and over what period, to measure the pH value of rainfall in different parts of the United Kingdom.
§ Mr. WigginThe Meteorological Office has operated equipment to provide measurements of the pH of rainfall at Lerwick and Eskdalemuir since 1958 and at Bracknell since 1965. This is part of a national programme, and I refer the hon. Member to the Department of Industry Warren Springs laboratory publication "Acidity of Rainfall in the United Kingdom—a preliminary report" dated June 1982.