Asia’s longest free-flowing river contaminated by arsenic linked to Myanmar mines

Mongabay
Apr 19, 2026, 10:52 pm68 ptsTrending
MAE HONG SON, Thailand — Saw Si Paw Rak Salween guns the wooden fishing boat’s engine and steers along the river that inspired his family name. He is ethnic Karen — his parents migrated from Myanmar’s side of the Salween River to the Thai side. When he acquired Thai citizenship, Saw Si Paw had to select…

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