Singapore Haze PSI Hits 93 in Central Region as Sumatra Wildfires Continue

Singapore's air quality neared unhealthy levels Tuesday as wildfires in Indonesia's Sumatra and Kalimantan sent haze across the region.

Singapore's 24-hour Pollutant Standards Index reached 93 in the central region on Tuesday — just seven points below the threshold officially classified as 'unhealthy' — as smoke from ongoing wildfires in Indonesia drifted across the Strait of Malacca. The haze originates from fires burning across Sumatra and Kalimantan, Indonesia's two largest islands, which have been experiencing active fire seasons over recent weeks. Singapore's National Environment Agency tracks PSI readings in real time through its dedicated haze microsite, which records separate figures for different regions of the city-state. A PSI of 0–50 is considered 'good,' 51–100 is 'moderate,' and readings above 101 enter the 'unhealthy' range, at which point authorities typically issue stronger advisories for vulnerable groups.

Why it matters

Haze events affecting Singapore can pose respiratory health risks, particularly for children, the elderly, and those with existing lung or heart conditions. Transboundary haze from Indonesian fires is a recurring seasonal issue across Southeast Asia that affects millions of people.

What's next

Singaporeans are advised to monitor the NEA haze microsite for updated PSI readings and to take protective measures if levels cross into the unhealthy range.

Key facts

• 24-hour PSI reached 93 in Singapore's central region on Tuesday
• A PSI above 100 is classified as 'unhealthy' under Singapore's air quality scale
• Wildfires have been burning in Indonesia's Sumatra and Kalimantan for several weeks
• Singapore's National Environment Agency publishes real-time PSI data by region on its haze microsite
• PSI readings vary by region across Singapore, not just city-wide

Bias & framing notes

Both sources are identical — the same AsiaOne article submitted twice — so there is effectively only one independent source. The reporting is framed around protective advice for readers rather than a hard news account of the haze event itself, giving it a service-journalism angle. No Indonesian government or NEA spokesperson quotes are included in the available excerpts, limiting independent verification of specific figures beyond the NEA microsite data cited.

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