Levels of particulate matter 2.5 micrometres or less in diameter (PM2.5) ranged from 24.3 to 49.8 micrograms per cubic metre (μg/m³) across the city, according to the Pollution Control Department (PCD).
The PCD reduced the threshold at which PM2.5 levels are considered unsafe from 50 to 37.5μg/m³ in June.
The public can monitor the pollution situation and follow health recommendations via the Air4Thai website and app.
The PCD said the accumulation of PM2.5 in Bangkok was due to higher air pressure leading to poor air circulation. It forecast the pollution haze will remain at “orange zone” levels for another one or two days.
PCD director-general Pinsak Suraswadi pointed out that PM2.5 pollution intensifies seasonally every year, affecting public health.
Natural Resources and Environment Minister Gen Patcharawat Wongsuwan has instructed authorities to prepare mechanisms,…
