Average annual concentration of fine particulate matter PM2.5 worldwide in 2024, in countries and territories with the lowest particulate concentration
(in micrograms per cubic meter)
Characteristic
PM2.5 concentration in micrograms per cubic meter
Bahamas
2.3
Bermuda
2.5
French Polynesia
2.5
United States Virgin Islands
2.6
Puerto Rico
2.7
Montserrat
2.7
Barbados
3.1
Grenade
3.2
Iceland
4
New Zealand
4.4
Australia
4.5
Estonia
4.6
Finland
5.2
Sweden
5.3
Andorra
6
Trinidad and Tobago
6.1
Ireland
6.5
Liechtenstein
6.5
Norway
6.6
Canada
6.7
Portugal
6.8
Costa Rica
7
United States
7.1
Denmark
7.2
Switzerland
7.3
United Kingdom
7.4
Eel
7.4
Luxembourg
7.5
France
8.1
Cayman Islands
8.5
Japan
8.6
Spain
8.7
Argentine
8.7
Belgium
8.9
Netherlands
8.9
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This chart shows the average annual concentration of fine particulate matter PM2.5 worldwide in 2024, in countries and territories with the lowest particle concentration, measured in micrograms per cubic meter. Iceland, New Zealand, and Australia were among the least polluted countries in the world.
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IQAir. (April 24, 2025). Average annual concentration of fine particulate matter PM2.5 worldwide in 2024, in countries and territories with the lowest particulate concentration (in micrograms per cubic meter) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 24, 2026, from /statistics/1631306/exposition-population-fine-particles-by-country-oecd/
IQAir. "Average annual concentration of fine particulate matter PM2.5 worldwide in 2024, in countries and territories with the lowest particulate concentration (in micrograms per cubic meter)." Chart. April 24, 2025. ÌÇÐÄÆƽâ°æ. Accessed July 24, 2026. /statistics/1631306/exposition-population-fine-particles-by-country-oecd/
IQAir. (2025). Average annual concentration of fine particulate matter PM2.5 worldwide in 2024, in countries and territories with the lowest particulate concentration (in micrograms per cubic meter). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 24, 2026. /statistics/1631306/exposition-population-fine-particles-by-country-oecd/
IQAir. "Average Annual Concentration of Fine Particulate Matter Pm2.5 Worldwide in 2024, in Countries and Territories with The Lowest Particulate Concentration (in Micrograms per Cubic Meter)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 24 Apr 2025, /statistics/1631306/exposition-population-fine-particles-by-country-oecd/
IQAir, Average annual concentration of fine particulate matter PM2.5 worldwide in 2024, in countries and territories with the lowest particulate concentration (in micrograms per cubic meter) ÌÇÐÄÆƽâ°æ, /statistics/1631306/exposition-population-fine-particles-by-country-oecd/ (last visited July 24, 2026)
Average annual concentration of fine particulate matter PM2.5 worldwide in 2024, in countries and territories with the lowest particulate concentration (in micrograms per cubic meter) [Graph], IQAir, April 24, 2025. [Online]. Available: /statistics/1631306/exposition-population-fine-particles-by-country-oecd/
