The database released by the World Health Organization ranks Onitsha, a major city of Anambra state as the most polluted city in the world.

Onitsha is one of the commercial cities in West Africa. Among other cities that make the list, Onitsha is taking the lead of the dirtiest city in the world.

Meanwhile, Aba, Umuahia and Kaduna in Nigeria also made the list.

Also Read: 20 Most Polluted Cities In the World