§ Mr. Ernie Robertsasked the Secretary of State for Social Services what proportion of total blood lead in (a) adults and (b) children he estimates to result from lead in petrol.
§ Mr. Geoffrey FinsbergIn its report "Lead and Health" the Lawther working party estimated that, in the city dwelling population as a whole, lead derived from vehicle emissions may account for between 10 and 20 per cent. of blood lead.