CONTROL OF EXHAUST EMISSIONS

KONTROLL AV AVGASUTSLAEPP

This report presents some results of tests carried out by the Swedish motor vehicle inspection company. The following main groups of tests were carried out: (1) 315 vehicles have been tested once. Of these 315 vehicles 255 vehicles were of the 1977 model. The remaining 60 vehicles were of the 1978 model, (2) 191 vehicles have been tested twice; before and after an exhaust service. The vehicles were of the 1977 model, (3) 122 of the above mentioned 191 vehicles were tested a third time. The aim of this test was to investigate whether the improvements which were obtained at the exhaust service, were lasting. In the first group 130 vehicles (41 per cent) exceeded one or more of the limits for exhaust. In the second group the number of vehicles which exceeded one or more of the limits was reduced from 81 vehicles (42 per cent) before the exhaust service to 44 vehicles (23 per cent) after the exhaust service. The differences between the makes are considerable. In the third group 52 vehicles (43 per cent) exceeded one or more of the limits before the exhaust service and 29 vehicles (24 per cent) after. At the third test the result was the same or a little worse than at the first test. The number of vehicles which exceeded one or more of the limits was 63 vehicles (52 per cent). Comments are also given on these results. (TRRL)

  • Corporate Authors:

    AB Svensk Bilprovning

    P.O. Box 508
    S-162 15 Vallingby,   Sweden 
  • Publication Date: 1978-12-29

Language

  • Swedish

Media Info

  • Features: Figures; Tables;
  • Pagination: 108 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00316517
  • Record Type: Publication
  • Source Agency: Swedish National Road and Transport Research Institute (VTI)
  • Report/Paper Numbers: Rapport NR 810 Monograph
  • Files: ITRD, TRIS
  • Created Date: Oct 27 1980 12:00AM