The smog situation in Mae Hong Son remains critical, prompting Nok Air to suspend three daily flights for three days in a row, and tourists to give the North a miss.
Mae Hong Son detected Wednesday fine particle matter smaller than 10 microns (PM10) at 437.8 mgs per cubic metre, way beyond the PM10 standard of no more than 120mgs per cubic metre, while the Air Quality Index (AQI)- normally less than 100 - soared to 320.
Chiang Mai has been smog shrouded for a week now, with the air quality station at City Hall reporting the PM10 at 268.4mgs per cubic metre and AQI value of 265.
Chiang Rai Prachanukhro Hospital deputy director Dr Phisanu Khantipong reported that 2,5003,000 people from 18 districts are seeking medical treatment at the hospital on a daily basis. Most were small children and senior citizens suffering from respiratory irritations.
