CAMEO+ eventENVIRONMENT2026-04-30馃嚬馃嚟

Toxic mine runoff prompts Chiang Rai to stop using Kok River for tap water

source: Chiang Rai local authorities -> target: Kok River water supply / Chiang Rai residents

On 2026-04-30, Chiang Rai local authorities in northern Thailand announced they were moving tap-water production away from the Kok River after heavy metals were detected in the water. The article says toxic arsenic runoff from upstream mining operations in Myanmar is polluting the river and prompting an urgent shift to a safer source, the Lao River.

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