Dangerous arsenic levels detected in Thailand’s Mekong mainstream for first time
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BANGKOK — Thai authorities have found what they described as dangerous levels of arsenic contamination in sediment from the Mekong River and three of its tributaries in the northern provinces of Chiang Mai and Chiang Rai. Heavy metal pollution has been reported from key tributaries of the Mekong for more than a year now, but the tests conducted in March by Thailand’s Pollution Control Department mark the first time that arsenic contamination has been detected on the mainstream of the Mekong, a v
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