According to Kenya National Bureau of Statistics, there were 1.6 million cars on our roads in 2011. National Transport and Safety Authority further records that between 2012 and 2016 nearly 1.2 million more vehicles joined our roads. It is, therefore, assumed that there are currently an estimated 2.3 million serviceable vehicles plying our roads. According to the UN Environment, vehicle population in Nairobi is expected to double in the next six years. While this is indicative of a growing middle class, it has also made Nairobi one of Africa's most polluted cities.
A major driving force behind this pollution is one that is most under-reported. Most motorists in Africa are unaware that the cars they are driving do not have the catalytic converter. This is a very important device that is found under the car within the engine exhaust system. It controls dangerous emissions by converting toxic gases into less toxic, breathable nitrogen and oxygen particles. It basically sieves out dangerous emissions so that we don't have to inhale them.