NORTH AMERICAN COUNTRIES AQI RANKING Countries 2024 Avg Countries 2024 Avg Countries 2024 Avg 1. Mexico 59 5. Curacao 37 9. Guadeloupe 31 2. Guatemala 58 6. Costa Rica 36 10. Canada 27 3. El Salvador 51 7. French Guiana 36 11. Puerto Rico 27 4. Trinidad And Tobago 43 8. United States 32 OCEANIA COUNTRIES AQI RANKING 3/6 Countries 2024 Avg Countries 2024 Avg Countries 1. Grenada 29 3. New Caledonia 22 4. Australia 2024 Avg. 21 2. New Zealand 28