Samoa

Country in Oceania

In brief

Air pollution PM2.5, µg/m³: 4.6 (2023). World rank 9 of 200 (1 = best); in Oceania, 7 of 17. Forest cover: 57.6% (2024). World rank 38 of 213; in Oceania, 8 of 19. Protected areas: 0.3% (2025). World rank 191 of 213 (1 = best); in Oceania, 11 of 19. From 2015 to 2025: protected areas 0.2% → 0.3%.

Air and emissions

Air pollution PM2.5, µg/m³: 4.6 2023
CO₂ emissions, tonnes per person: 1.6 2024
All greenhouse gases, tonnes CO₂e per person: 2.4 2024

Nature and water

Forest cover: 57.6% 2024
Protected areas: 0.3% 2025
Renewable fresh water, m³ per person: No data
Water stress, share of fresh water withdrawn: No data