HC Deb 24 March 1982 vol 20 cc365-6W
Dr. Roger Thomas

asked the Secretary of State for Transport if he will set up an investigation into the cost and effectiveness of the mandatory fitting of exhaust gas filters to all petrol driven vehicles to reduce the lead emitted in exhaust emissions.

Mr. Eyre

The Government assessed the cost and effectiveness of lead filters before deciding to reduce the lead content of petrol from 0.4 to 0.15 grams per litre. My Department is aware of recent developments in this field and is keeping them under review.