Background: Several studies have analysed the pollution issues owing to road traffic in
Cotonou, Benin. Concentration levels of particles are higher on high traffic than a low traffic.
The exposure of human populations to air pollution is more intense on the roads. In Benin,
the density of traffic on the crossroads is indeed more important. Are traffic locations such as
crossroads, areas where the level of exposure PM2. 5 is increased? Methods: This study
was conducted along the 5 km high-traffic road in the city of Cotonou. It is a high traffic lane …