§ Mr. Elwyn Jonesasked the Minister of Health, as representing the Lord President of the Council, if he will refer to the Medical Research Council the question of the extent to which respiratory diseases are caused by inhalation of benz pyrene as a by-product of the combustion of diesel oil in vehicles.
§ Mr. Walker-SmithThe Medical Research Council are already aware of this problem. For some years they have been carrying out a wide programme of research on air pollution of which work on the possible effects of diesel exhaust fumes on health forms a part. These investigations have so far demonstrated no immediate or long-term deleterious effects from this source.