Exposure to PM2.5 related to road traffic : comparison between crossroads and outside of crossroads at Cotonou, Benin

Abstract

Several studies have analysed the pollution issues owing to road traffic in Cotonou, Benin. Concentration levels of particles are higher in high traffic areas. This study was conducted along the 5 km high traffic road in the city of Cotonou. The journal article reviews the study methodology and findings. Results of a Generalized Linear Mixed Model shows there are highly significant differences between concentrations of PM2.5 at crossroads, and as well, significant differences between concentrations of PM2.5 in the dry season compared to the rainy season. Exposure of human populations to air pollution is more intense on these crossroads.