13. Australia
EPI score: 87.22
An interesting fact about Australia, at least when it comes to the cleanliness, is that its 15 cities are among the cleanest cities in the world (according to the WHO list). Two biggest cities in Australia also have the lowest levels of pollution. This is very interesting since it is expected that the bigger the city, the higher level of pollution will be. When it comes to drinking water, in case of Sydney, most of its drinking water (80%) comes from Lake Burragorang at Warragamba.
Edward Haylan/Shutterstock.com
