Bangkok’s residents can breathe easy under clearer skies, with city authorities reporting air quality readings have moved out of dangerous levels.
But two major provincial cities, Khon Kaen and Loei, are not yet in the clear, where high levels of toxic dust still persist, Bangkok Post reported.
The PM2.5 readings, which measure pollutants so fine they can enter a person’s lungs and bloodstream, have dropped below 50 microgrammes per cubic metre (mgcm) of air, as of Thursday, according to Bangkok Metropolitan Administration’s Anti-Dust Coordination Centre.
The centre said in a report that people can carry out “outdoor activities and go outside as usual”.
Previous measures to combat the hazardous smog blanketing late last month are set to continue, such as cloud-seeding over Bangkok and other provinces, said Surasee Kittimonthon, director-general of the Royal Rainmaking and Agriculture Aviation Department on Thursday.
The Pollution Control Department has warned residents of Khon Kaen that toxic PM2.5 smog levels of 101 PM2.5 mgcm in Muang district continue to pose a health problem.
Loei's Muang district was another health-risk area, with PM2.5 readings at 109.