Air quality in Singapore remains compromised as haze continues to envelop most parts of the island. As of the morning of October 6, the 24-hour Pollutant Standards Index (PSI) indicated unhealthy levels, with readings of 107 in the north, 112 in the east, 117 in the west, and 130 in the central region. The southern region recorded a moderate PSI of 95. A PSI reading between 101 and 200 is considered unhealthy, highlighting the severity of the current conditions.
In addition to the PSI, fine particle pollution, specifically PM2.5, was elevated across several areas, reaching 56 in the east, 59 in the west, and 60 in the central region, while the south recorded 35 and the north 48. The haze affecting Singapore has been attributed to smoke drifting from Kalimantan and southern Sumatra in Indonesia, where dry weather has led to moderate to dense smoke plumes. Winds from the southeast and east-southeast are expected to persist, potentially prolonging the haze.
Authorities have warned that the 24-hour PSI could remain in the high-moderate to mid-unhealthy range as dry conditions continue in parts of the region. The haze situation in Singapore has deteriorated since September, when PSI levels first reached the unhealthy threshold. The highest reading so far this year was 164 in the central region on September 29.
Concerns are growing that the dry spell may last longer than usual this year. Weather patterns linked to a strong El Niño are expected to delay the onset of the wetter season in Southeast Asia, which could extend the period of poor air quality. The ongoing haze raises significant health and environmental issues as residents are urged to take precautions when air quality is poor.