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Case study: Urban Air Quality in Cotonou
As with many others developing African major cities, environ-mental problems in Cotonou are more and more noticeable. These problems are the result, amongst other things, of air pollu-tion caused to a large extent by the transportation sector.


Mopeds are also the most popular form of transport (75 percent of motorized trips) in Cotonou. According to the findings, emissions double by 2010 and by then SO2 levels are also projected to rise above the norm in places. The study also estimated the cost of damages resulting from air pollution by comparing acute respiratory illness rates in urban and rural areas of the province of Cotonou and estimating direct (medical expenses) and indirect (loss of earnings/productivity) losses due to the higher rates in the city. Combining vehicle and fuel measures with a more robust bus and traffic investment program would have the most significant corrective effect.


Case study: Urban Air Quality in CotonouCase study: Urban Air Quality in Cotonou
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