PM2.5 pollution hits unsafe levels in 19 Bangkok districts
Much of Bangkok was blanketed in hazardous smog on Tuesday morning, with monitoring stations in almost two dozen districts showing PM2.5 particles had exceeded the safe level of 50 micrograms per cubic metre.
The Bangkok Air Quality Division reported that 19 of its monitors showed PM2.5 dust in the 51-90mg/m3 range, where it starts to impact on health. A level of more than 90mg/m3 is considered hazardous to health.