Cleanliness is something that is often taken for granted, but it is actually a very important factor in the overall health of a city. In this article, we are going to take a look at the 10 cleanest cities on Earth, and why they rank so highly.
Methodology and Limitations
- To determine the cleanest cities in the world, 24/7 Wall St. reviewed various data sources, including the World Health Organization’s 2017 “World Health Report,” the Institute for Health Metrics and Evaluation’s 2018 “Global Burden of Disease Study,” and the United Nations Environment Programme’s 2017 “Eco-Indicators Cities Index.”
- In order to be considered for this list, a city had to have at least a “good” ranking on at least one of the three indexes. Cities that scored poorly on one index but had a good ranking on another were not included.
- The rankings are based on a city’s performance on environmental indicators, such as air quality and water availability.
- Each city was given a score from 1 to 100, with 100 representing the most environmentally friendly city in the world.
- The rankings are not based on economic indicators, such as GDP or population size.
- Each city is listed below with its corresponding score, its rank on each index, and the country in which it is located.
Ranking CriteriaTo determine the cleanest cities on earth, a number of factors were considered. These included population density, air quality, public health, and city infrastructure. The cities that finished at the top of the list are all very diverse in terms of their culture and geography. However, they all share one common attribute: they are all very clean.
- Population Density
- Air Quality
- Public Health