§ Mr. BlunkettTo ask the Secretary of State for the Environment what measures he intends to take to prevent the air pollution levels of the past week affecting the drinking water supply drawn from watercourses in the affected areas.
§ Mr. Trippier[holding answer 20 December 1991]:None. I am advised that the high air pollution levels recently experienced in London should not have had any adverse effect on the quality of drinking water as there was no concurrent rain to wash the pollution into the water supply. The current blustery weather conditions should have dispersed the pollution.