The haze is back as PSI hits unhealthy range in Singapore as air quality worsens

An aeroplane (in the distance) preparing to land in hazy conditions as seen in Pasir Ris at 9am on Oct 7, 2023. The 24-hour PSI as of 9am in the east is 107. - ST PHOTO: KEVIN LIM

SINGAPORE: The air quality in Singapore entered the unhealthy range on Saturday morning.

The 24-hour Pollutant Standards Index (PSI) readings ranged between 63 and 112 at noon, with the highest recorded reading in the east.