Subscribe to our YouTube channel for free here: sc.mp/subscribe-youtube For more on this story: sc.mp/a214c7 Dangerous levels of arsenic have been detected in a northern Thai river that has been contaminated by chemicals used in mines across the border in Myanmar. Images of the orange-yellow waters have been widely shared online, sparking warnings from local environmentalists that the toxic sediment threatens to unleash an unprecedented ecological disaster on Thailand’s waterways. Support us: subscribe.scmp.com Follow us on: Website: scmp.com Facebook: facebook.com/scmp Twitter: twitter.com/scmpnews Instagram: instagram.com/scmpnews Linkedin: linkedin.com/company/south-china-morning-post #scmp #DeepDive #Thailand