During three days in September 1991 the emissions of CO and HC from 14641 vehicles were measured by remote sensing at a highway exchange lane in Gothenburg, Sweden. The results show that the majority of vehicles have low emission rates, 80 % < 1 % CO and < 0.1% HC by volume. 10% of the vehicles had emissions lower than the detection limit (0.01 % CO or HC). A minority had high or very high emissions, e.g. ten vehicles > 10 % CO and > 2 % HC. An analysis shows that 60 % of the total CO-emissions were caused by 10 % of the (dirtiest) vehicles (for HC - 20 % of the vehicles). A deeper analysis of emissions from vehicle types, makes, age can be made since the registration plates of the vehicles were videofilmed in parallel with the emission measurements. 5 refs.
Rena och smutsiga bilar. En pilotstudie av avgasutslaepp fraan svenska fordon i verklig trafik. (Clean and dirty cars. A pilot study of exhaust emissions from swedish cars on the road)
1991
15 pages
Report
Keine Angabe
Englisch
Utslaepp fraan tunga fordon drivna med RME jaemfoert reed Mk1-dieselolja
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