For the first time since October 5, Singapore's 24-hour Pollutant Standards Index (PSI) readings across all five regions returned to the good to moderate range on Thursday, marking a welcome break from days of unhealthy air quality caused by haze from nearby Indonesia.
- PSI in all regions back to good to moderate range on Oct 22
- Worse haze conditions expected again by Friday
- Showers may help clear haze over weekend
What happened
On Thursday, October 22, Singapore enjoyed improved air quality with the 24-hour PSI readings for each of its five regions falling within the good to moderate range. This marked the first time this level was achieved since early October amid ongoing haze episodes caused by forest fires in Kalimantan and Sumatra. The central and western regions shifted out of the unhealthy range at different times during the day, while other regions maintained moderate readings throughout.
Hourly PM2.5 particle levels, a key indicator of air pollution, remained normal across all areas. The National Environment Agency noted that the prevailing northeasterly and easterly winds largely pushed the haze away from surface levels, though some smoke haze persisted at higher altitudes above Singapore. The western region was the last to return to normal air quality late Thursday night.
Why it feels good
After weeks of experiencing unhealthy and uncomfortable haze conditions that could affect vulnerable groups such as children, elderly, and those with chronic illnesses, the return to moderate air quality brings welcome relief to residents. Breathing easier outdoors and having clearer skies contribute to improved well-being and daily comfort for many.
The temporary improvement allows for more outdoor activities without heightened health concerns, easing worries especially for pregnant women and those with respiratory issues. It also lessens the need for masks and other protective measures, which can enhance daily quality of life.
What to enjoy or watch next
Despite Thursday’s positive shift, caution remains as the National Environment Agency warns that the 24-hour PSI levels are expected to return to the unhealthy range on Friday due to ongoing dry conditions in southern Sumatra and Kalimantan. Southeasterly winds may bring fresh haze towards Singapore, increasing pollution levels once again.
Looking ahead, showers forecast over the weekend offer hope for clearer skies and improved air quality by Sunday. The public is advised to stay updated on hourly PM2.5 readings to make informed decisions about outdoor activities and mask usage, particularly for vulnerable individuals who may be affected more severely by pollution spikes.