People living along the Kok River in Thailand’s Chiang Mai and Chiang Rai provinces have been advised not to use water from the river for consumption, due to the excessive amounts of arsenic it contains. The poison is believed to originate from extensive gold mining activities in Mong Hsai town in Myanmar’s Shan state.

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Arveera Pakamat, director of the environment and pollution control office in Chiang Mai, said that, on March 19th, officials took water samples from the Kok River in Mae Ai district for testing, which revealed that the arsenic content is twice the safe level.

Full story: thaipbs.or.th

By Thai PBS World