Bangkok toxic haze at dangerous levels

Air pollution in five areas around Bangkok and its vicinity hit dangerous levels on Sunday morning with PM2.5 readings coming in at 21 to 61 micrograms per cubic metre (μg/m3), the Bangkok Metropolitan Administration (BMA) reported.

Thailand’s standard for safe levels of PM2.5 (particles less than 2.5 micrometres in diameter) is 50 μg/m3, The Nation reports.