World Bank reported that 94% of the population in Nigeria is exposed to air pollution levels.
A WHO report about air quality which examined PM 2.5 (fine particulate pollution) and PM 10 (coarse pollution particles) levels in 3000 cities across the globe, found that five Nigerian cities have been have been included in the top twenty polluted cities in the world.
The report which says that 80% of city dwellers are breathing in bad air and are at a risk of life threatening diseases like lung cancer, added that the air pollution is rising at an alarming rate in urban areas of poor countries.
In this report, Onitsha was noted as the most polluted city and Sinclair in US as the least polluted
Here are the top 12 polluted cities from Nigeria 2016.
Global rank: 513, Nigerian rank: 12
Global rank: 460, Nigerian rank: 11
Global rank: 362, Nigerian rank: 10
Global rank: 245, Nigerian rank: 9
Global rank: 173, Nigerian rank: 8
Global rank: 136, Nigerian rank: 7
Global rank: 130, Nigerian rank: 6
Global rank: 70, Nigerian rank: 5
Global rank: 16, Nigerian rank: 4
Global rank: 6, Nigerian rank: 3
Global rank: 5, Nigerian rank: 2
Global rank: 1, Nigerian rank: 1