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Tag: heavy metals pollution Chiang Rai

Heavy Metals in Chiang Rai Rivers

Heavy Metals in Chiang Rai Rivers Still Exceed Standard Levels

By Naree Srisuk

2 hours ago

The Chiang Rai Times was launched in 2007 as Communi Thai a print magazine that was published monthly on stories and events in Chiang Rai City.

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