Vehicle-emitted hydrocarbons were assessed in the major Tingstad Tunnel in Göteborg, Sweden.
Samples were taken on adsorbent cartridges and analyzed by gas chromatography after thermal desorption.
Although the tunnel is only 454 m long, the concentration levels were found to be approximately five times higher than inside commuter cars on roads with similar traffic.
Representative proportions of non-methane hydrocarbons were 14% for alkenes, 32% for alkanes and as much as 49% for arenes.
Mots-clés Pascal : Pollution air, Tunnel routier, Zone urbaine, Hydrocarbure, Composé volatil, Gaz échappement, Echantillonnage, Contrôle, Teneur air ambiant, Chromatographie phase gazeuse, Suède, Europe
Mots-clés Pascal anglais : Air pollution, Road tunnel, Urban area, Hydrocarbon, Volatile compound, Exhaust gas, Sampling, Check, Ambient air concentration, Gas chromatography, Sweden, Europe
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 92-0649072
Code Inist : 001D16C04C. Création : 199406.