Singapore’s air quality worsens, all regions record unhealthy levels

Singapore's air quality has significantly worsened across all regions, with all five areas recording unhealthy levels of pollution according to the 24-hour Pollutant Standards Index (PSI), data revealed by the National Environment Agency (NEA). The Central region experienced the most severe impact, recording a PSI of 166 as of 11 am on Tuesday.

In contrast, the West region recorded a PSI of 149, the East at 136, South at 132, and North at 108. The 24-hour PSI is a key indicator of the country's daily air quality and serves as the basis for the NEA's health advisories. Under the PSI scale, readings between 101 and 200 are classified as unhealthy, 201 to 300 as very unhealthy, and over 300 as hazardous.

The ASEAN Specialised Meteorological Centre reported moderate transboundary smoke haze affecting parts of Peninsular Malaysia, Singapore, and the northwestern parts of Borneo. Additionally, dense smoke plumes were observed emanating from hotspot clusters in extensive areas of Kalimantan, as well as the central and southern regions of Sumatra.

Many air quality stations in Borneo, Sumatra, Singapore, and certain parts of Peninsular Malaysia are currently reporting unhealthy to hazardous air quality levels.