Ranking of the least polluted countries and territories in the world in 2023, according to the average daily concentration of PM2.5 particles
(in micrograms per cubic meter)
Characteristic
Daily average concentration of PM2.5 particles in μg/m³
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The purest air in the world is found in French Polynesia, where the daily concentration of PM2.5 particles barely reaches *** micrograms per cubic meter. Mauritius and Iceland complete the podium of the least polluted countries, with levels of *** and * micrograms per cubic meter of PM2.5 particles, respectively.
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IQAir. (January 8, 2024). Ranking of the least polluted countries and territories in the world in 2023, according to the average daily concentration of PM2.5 particles (in micrograms per cubic meter) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved August 02, 2026, from /statistics/1656889/ranking-of-the-least-polluted-countries-in-the-world/
IQAir. "Ranking of the least polluted countries and territories in the world in 2023, according to the average daily concentration of PM2.5 particles (in micrograms per cubic meter)." Chart. January 8, 2024. ÌÇÐÄÆƽâ°æ. Accessed August 02, 2026. /statistics/1656889/ranking-of-the-least-polluted-countries-in-the-world/
IQAir. (2024). Ranking of the least polluted countries and territories in the world in 2023, according to the average daily concentration of PM2.5 particles (in micrograms per cubic meter). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: August 02, 2026. /statistics/1656889/ranking-of-the-least-polluted-countries-in-the-world/
IQAir. "Ranking of The Least Polluted Countries and Territories in The World in 2023, According to The Average Daily Concentration of Pm2.5 Particles (in Micrograms per Cubic Meter)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 8 Jan 2024, /statistics/1656889/ranking-of-the-least-polluted-countries-in-the-world/
IQAir, Ranking of the least polluted countries and territories in the world in 2023, according to the average daily concentration of PM2.5 particles (in micrograms per cubic meter) ÌÇÐÄÆƽâ°æ, /statistics/1656889/ranking-of-the-least-polluted-countries-in-the-world/ (last visited August 02, 2026)
Ranking of the least polluted countries and territories in the world in 2023, according to the average daily concentration of PM2.5 particles (in micrograms per cubic meter) [Graph], IQAir, January 8, 2024. [Online]. Available: /statistics/1656889/ranking-of-the-least-polluted-countries-in-the-world/
