How Thailand’s Chiang Mai became the world’s most polluted city
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More than two million people in Thailand have reported respiratory illnesses linked to pollution since the beginning of the year. Air quality in the north of the country has been classified as unhealthy or hazardous. Al Jazeera’s Tony Cheng reports from Chiang Mai, Thailand Subscribe to our channel: http://bit.ly/AJSubscribe Follow us on Twitter https://twitter.com/AJEnglish Find us on Facebook https://www.facebook.com/aljazeera Check our website: http://www.aljazeera.com/ Check out our Instagram page: https://www.instagram.com/aljazeeraenglish/ #Thailand #ChiangMai #Pollution #Polluted #City #Respiratory #Unhealthy #aljazeeraenglish #aljazeeralive #aljazera