Onitsha -- a city few outside Nigeria will have heard of -- has the undignified honor of being labeled the world's most polluted city for air quality, when measuring small particulate matter concentration (PM10).

A booming port city in southern Nigeria, Onitsha recorded 30 times more than the WHO's recommended levels of PM10.

The other three cities named and shamed in the WHO report for high PM10 levels are the transport hub of Kaduna, in the north, which came fifth, followed by the cities of Aba -- in sixth place -- and Umuahia, in 16th position, which are both trade centers in southern Nigeria.

"The contributing factors to pollution are a reliance on using solid fuels for cooking, burning waste and traffic pollution from very old cars," Dr Maria Neira, WHO Director, Department of Public Health, Environmental and Social Determinants of Health, tells CNN.

At home, due to unreliable electricity supplies, many Nigerians rely on generators, which spew out noxious fumes often in unventilated areas.

On the street, car emissions go unregulated.


Source: http://edition.cnn.com/2016/05/31/africa/nigeria-cities-pollution/index.html

A booming port city ? Port gini ? Kamnukwa.....