Least polluted countries in the world 

Sweden 

It has low levels of air and water pollution and actively promotes eco-friendly practices

Norway 

The country emphasizes clean energy sources and sustainable living

Finland 

Finland maintains clean air and water quality, thanks to responsible environmental policies

Iceland

Its remote location and small population contribute to its low pollution levels

Estonia

 Estonia has made efforts to improve its environmental quality by reducing air pollution and supporting eco-friendly initiatives

Austria

The country places a strong emphasis on sustainable transportation and energy sources

Switzerland

Switzerland is known for its clean air, well-maintained natural areas, and strict environmental standard