A view over the Aura river in Turku. Picture: Tony Öhberg for Finland Today
Finland has the cleanest air in the world, according to the latest data published by the World Health Organization, WHO.
In Finland, the concentration of fine particles is only about 6 µg/m3, one microgram in a cubic meter.
Estonia, Sweden, Canada, Norway and Island come close with similar levels.
The top 18 countries in the world with the cleanest air. Picture: WHO
The index gathered by WHO consists of measurement data of fine particles in 2,500 localities, in nearly 100 countries between years 2008-2016.
Countries with the worst air quality are found in the Middle and the Far East and Africa.
In above countries, the concentration of fine particles is ten times more than compared to the best on the list.
In metropolises of India, for example, the concentration of fine particles could be as much as 100 µg/m3 in a year.
The reference level for particulate matter recommended by the WHO is 10 µg/m3.
The countries with the worst air quality. Picture: WHO
The data was analyzed by the Finnish Meteorological Institute.
