§ Dr. Roger Thomasasked 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. EyreThe Government assessed the cost and effectiveness of lead filters before deciding to reduce the366W 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.