The 24-hour PSI reached 181 in the central region at noon on 9 October, the highest of this haze season (CNA). NEA said the PSI may enter the very unhealthy range, above 200, and it was possible the 24-hour PSI could exceed 200 (ST). The Haze Task Force said N95 masks will go to more vulnerable individuals once the 24-hour PSI exceeds 200 (CNA), and to eligible Singaporeans when it hits 201 (ST). School closures will be considered when the next day's forecast exceeds a 24-hour PSI of 300 (CNA). Many people masked up and cut back on outdoor activities, while others went to the Grand Prix (CNA). Verstappen took sprint pole ahead of Russell (Sky Sports, CNA). In Malaysia, 37 areas recorded unhealthy readings on Friday morning and schools were shut widely (CNA, Reuters); Selangor postponed its National Sports Day (ST).
Haze is a health issue first: fine particles reach deep into the lungs, and children, older people and those with heart or lung conditions are most at risk. It also tests the region's cooperation, because the fires are in Indonesia and the smoke crosses borders.
Check the PSI on the NEA website or the myENV app before outdoor plans, and cut back on strenuous activity when it is in the unhealthy range. If you are vulnerable, find out how to get an N95 mask before the PSI passes 200. If you are going to the Grand Prix, bring a mask.
The tiered plan is sensible. Free masks and school-closure rules tied to clear PSI thresholds give people certainty, and the early warning from NEA gave time to prepare.
A reading of 181 is already unhealthy, and waiting for 200 before acting may be late for the vulnerable. The deeper fix is stopping the fires in Indonesia, which Singapore cannot do alone.
Watch three things today: whether the 24-hour PSI crosses 200 and masks are distributed, whether the weekend's events change their plans, and whether Indonesia's promised action turns into visible firefighting. A shift in wind direction is what clears haze fastest; a persistent smoke plume could carry the problem into next week.
CNA, The Straits Times, Reuters, Sky Sports, NU.nl (9 Oct 2026)
Haze reaches its worst level this season as the Grand Prix weekend opens, and N95 masks will go to vulnerable people if the PSI passes 200
The 24-hour PSI hit 181 in central Singapore at noon on Friday, the highest of this haze season. The National Environment Agency says it may enter the very unhealthy range.
Air quality in Singapore worsened on Friday to the highest level of this haze season. CNA reported that the 24-hour PSI, the Pollutant Standards Index, reached 181 in the central region at noon. That is inside the unhealthy band of 101 to 200. The Straits Times reported that the National Environment Agency (NEA) said the reading may enter the very unhealthy range, above 200, and that on the current situation it was possible the 24-hour PSI could pass that mark.
The Haze Task Force set out what happens next. CNA reported that N95 masks will be distributed to more vulnerable individuals once the 24-hour PSI exceeds 200, and the Straits Times said eligible Singaporeans will receive them when the PSI hits 201. CNA also reported that school closures will be considered only when the forecast for the next day exceeds a 24-hour PSI of 300. DailyDrop has not seen the full list of who qualifies for a free mask, so check the agency's notices. NEA guidance says vulnerable people should avoid or limit time outdoors when the forecast is very unhealthy.
The Formula 1 Singapore Grand Prix opened in this air. CNA reported that many people put on masks and cut back on outdoor activities, while others kept to their plans, including going to the race and its events. NEA exempted the Circuit Park from the 10-cent deposit on beverage containers under the BCRS, CNA and the Straits Times reported. On track, Max Verstappen took pole position for the sprint ahead of George Russell, Sky Sports and CNA reported, and kept it without a grid penalty after a stewards' inquiry into an overtake under yellow flags, according to NU.nl.
The smoke is worse across the Causeway. CNA reported that 37 areas in Malaysia recorded unhealthy air pollution readings on Friday morning, and that schools were shut in many parts of the country. Reuters said schools were closed in several states and territories. The Straits Times reported that Selangor postponed its National Sports Day celebrations to protect children and other vulnerable groups. On Thursday, Prime Minister Anwar Ibrahim said Indonesia had agreed to act on the fires; DailyDrop has not seen what steps have been announced. CNA and the Straits Times also reported on orangutans rescued from the fires in Indonesia, one of which walked through flames.
The fine particles known as PM2.5 are what matter most for health. A 24-hour index smooths out spikes, so hourly readings can look worse or better than the headline number. Today is the first full day of the race weekend, and the sprint race and qualifying are scheduled at Marina Bay. Today, watch the NEA readings through the day, whether the 24-hour PSI crosses 200 and triggers the mask distribution, and whether wind shifts clear the air. The Singapore stock market is closed today; the Straits Times Index ended Friday at 5,401.89, down 0.20 per cent.