Individual exposure level following indoor and outdoor air pollution exposure in Dakar (Senegal)

Abstract

The study evaluated indoor and outdoor air pollution levels (CO, CO2, NO, NO2, PM10) at an urban site in Dakar city center and at a rural site. Individual exposure levels to selected pollutants and the variations in the levels of biomarkers of exposure were investigated in different groups of persons (bus drivers, traders working along the main roads and housemaids). Urinary S-PMA and t,t-MA levels were considered as biomarkers of environmental exposure to benzene for the enrolled subjects. This study clearly shows that interiors of buses circulating in Dakar determine high exposure to gases and particles compared to other environments investigated.