4- Senegal
Pollution level: 145 ug/m3
Senegal’s problem is similar to Nigeria’s. These two countries have experienced rapid growth and urbanization, and a lack of planning has lead to carbon emissions rising. Its pollution comes from mining, vehicle emissions and combustion of fuels for domestic energy needs. The country is also dealing with a high concentration of fluoride in its water, which was 15 times higher than the acceptable standard of 2011.
