Nobody likes pollution in their city, and to some degree, everyone complains about it. Smog, trash, all of the above make life miserable. But if you think your city has issues, those are extremely minor problems compared to the cities on this list. Here are the 10 most polluted cities in the world. Most polluted cities in the world 10. Onitsha, Nigeria Onitsha is a port city in Nigeria with over one million citizens. In 2016, the city had the world's highest recording of pollutant particles called PM10. This is particulate matter that is 10 microns per measurement. Being the…
