9 February 2018 02:16 pm
REUTERS, 08th FEBRUARY, 2018- Residents in Bangkok, one of the world’s top tourist destinations, were warned on Thursday the city’s air quality had hit dangerous levels just days after the country’s pollution control agency appealed to residents to wear face masks.
Air pollution in the Thai capital has come under increasing scrutiny in recent weeks with residents complaining of smog and respiratory problems. Some schools were closed on Thursday or kept children indoors.
Air Quality Index (AQI) formulas usually include up to six main pollutants including PM2.5, PM10, carbon monoxide, sulfur dioxide, nitrogen dioxide and ground level ozone.
The Pollution Control Department reported PM2.5 dust in the Bangkok Metropolitan at midday on Thursday and at midday it was measured at 72-95 micrograms per m3, with the likelihood that it would increase.