5 Cleanest Countries in Europe

2. Finland

Average Wastewater Treatment Level: 78

Average Mismanaged Solid Waste: 95.94

Annual Average PM2.5 Concentration (μg/m³): 5

Average Ranking: 7

Finland is a Northern European country bordering Norway and Russia. It ranks as the 2nd cleanest country in Europe with an average ranking of 7 and air quality index of 5μg/m³. It is one of the world’s most northern and geographically remote countries.