This brief article is concerned with the health problems that arise from the use of catalysts to reduce car exhaust emissions. The author first refers to the environmental protection agency's decision to give automobile manufacturers at least another year to make reductions in car exhaust exissions in America. It is pointed out that although the catalytic converters that are being adopted by American car manufacturers do a good job in oxidising hydrocarbons and carbon monoxide, they also oxidize sulphur dioxide to sulphuric acid; and that EPA have found that cars equipped with catalysts produce 35 times more than cars without catalysts and if an air pump is used to meet stricter pollution control standards, the production would be 70 times more. The dangers of sulphuric acid emission from cars are discussed together with the possible health problems which might arise when concentrated along motorways and in cities. The author also discusses this particular problem in relation to the problems of rapidly introducing legislation to deal with environmental problems, the absence of an immediate solution to the sulphuric acid problem and the probable need for a completely different car engine design such as the stratified charge engine. /TRRL/

  • Corporate Authors:

    MacMillan Journals Limited

    4 Little Essex Street
    London WC2R 3LF,   England 
  • Authors:
    • NORMAN, C
  • Publication Date: 1975-3-13

Media Info

  • Pagination: p. 96
  • Serial:
    • Nature
    • Volume: 254
    • Issue Number: 5496
    • Publisher: MacMillan Journals Limited

Subject/Index Terms

Filing Info

  • Accession Number: 00125040
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Nov 18 1975 12:00AM