PCD names Thailand’s top 10 cleanest coasts and rivers for 2025 PCD names Thailand’s top 10 cleanest coasts and rivers for 2025
FRIDAY, DECEMBER 26, 2025
Thailand’s 2025 water-quality monitoring shows 31% of coastal seawater rated “good”, led by Ao Saphli in Chumphon. Surface-water quality was “good” at 40%, with the upper Phetchaburi River ranked best.