11 Least Polluted Countries in the World in 2018

9. Ireland

EPI: 78.77

CO₂ emission: 7.37

PM2.5: 9.5

It seems that air pollution is also the most burning issue concerning pollution in Ireland, the number 9 on our list of least polluted countries in the world in 2018. Among the big pollutants in Ireland is burning of solid fuel. Solid fuel makes 70% of the whole air pollution and only 4% of is used as fuel, so you do the math.

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