Samoa as an air pollution mortality rate of 85.0 per 100,000 population. The mean annual exposure of PM2.5 in Samoa is 11.5 mg/m³, endangering 100.0% of its population according to the World Health Organisation guidelines.
The territory of Samoa has a surface area of 2840 km², 2830 of which being land area. Forests represents 60.4% of the land with 1710 km². Around 0.1% of territorial waters are protected marine areas.
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