Air quality in eastern Singapore reached unhealthy levels on Tuesday, with PM2.5 readings peaking at 162 around 4:45 p.m., according to the National Environment Agency (NEA).
PM2.5 Levels in Singapore
The NEA reported that PM2.5 levels, which measure fine inhalable particles up to 2.5 micrometres in diameter, were “slightly elevated.” Some residents reported a faint smell of burning.
The agency attributed the air quality to a hot spot and smoke plume detected in Johor, Malaysia. Prevailing winds from the north and northeast carried haze over Singapore, impacting air quality.
As of 8 p.m. Tuesday, PM2.5 levels in eastern Singapore had returned to “normal,” registering at 27. The Pollutant Standards Index for the area was 58, categorized as “moderate.”
An air quality reading of zero to 55 is considered “normal,” while a PM2.5 level between 151 and 250 indicates a “high” concentration of particles.
The public can find the latest air quality updates on the myENV mobile app.
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