12. United Kingdom
EPI score: 87.38
While researching about air pollution in the United Kingdom, we found out that the cleanest air in U.K. is in coastal areas because there, air changes more frequently. Pollutant levels are dependent on topography, which is why cities are the most polluted areas. Tap water in the U.K. is safe for drinking and meets some of the highest standards in the world.
Pixabay/Public Domain
