St. Lucia as an air pollution mortality rate of 30.0 per 100,000 population. The mean annual exposure of PM2.5 in St. Lucia is 22.4 mg/m³, endangering 100.0% of its population according to the World Health Organisation guidelines.
The territory of St. Lucia has a surface area of 620 km², 610 of which being land area. Forests represents 33.2% of the land with 202 km². Around 0.2% of territorial waters are protected marine areas.
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