La Paz, Bolivia
Unfortunately, La Paz is one of the most polluted cities in Bolivia, with over 90% of its air pollution coming from car exhaust emissions. Additionally, agricultural burning and fossil fuels used for cooking contribute to this statistic. Because of climate change, which is due to pollution, many areas in Bolivia succumb to wildfires and drought. Many people living in rural areas suffer from the direct effects of pollution.

Their air quality is moderately polluted, and even though that’s not as bad as some other polluted areas on this list, it doesn’t mean they’re immune to the ill effects of pollution on human health (Earth).