Unsafe levels of fine dust are forecast for the capital city from Tuesday to Friday due to stagnant air and extensive burn-off in Cambodia.
A high pressure systems from China would cover the country and cause stagnant air which would result in the accumulation of dust particles that could reach unsafe levels from Jan 31-Feb 3, Bangkok Governor Chadchart Sittipunt said on Monday.
"There are more hotspots due to biomass burn-off in Cambodia. Northeasterly winds are blowing the dust of burnt biomass to the Gulf of Thailand but on Feb 1 and 2 the wind direction will change. The easterly wind will bring more biomass dust to Bangkok," Mr Chadchart said.