Polycyclic Aromatic Hydrocarbons (PAHs) are aromatic hydrocarbons with three or more fused benzene rings that include carbon and hydrogen. These are thought to be harmful to human health, and we cannot avoid being exposed to them because they are widely disseminated throughout the environment. PAHs...

In this paper, we present the estimate and results of measurement of air pollution in Béjaia city in Algeria. We used an enclosure of 0,80 m3 for the collection of gases directly on the outlet side of the tailpipe of the vehicles. A three-gas detector (MX21 plus), introduced inside the enclosure...