Haze Situation Update (9 October 2023)

Singapore, 9 October 2023 – There were thundery showers over many areas in Singapore this afternoon. As at 5pm, the 1-hr PM2.5 concentration readings were 18-40 µg/m3, in Band I (Normal), and the 24-hr PSI was 55-73, in the Moderate range.

Update on Hotspot and Haze Situation

2    Wetter conditions were observed over many parts of the surrounding region today. Due to thick cloud cover, hotspots and smoke plumes could not be detected over Sumatra from satellite imagery today.

3    While the prevailing winds are expected to blow mainly from the south or southwest tomorrow, showers in the region will help to improve the hotspot and haze situation in Sumatra. The likelihood of transboundary haze affecting Singapore is thus low. For the next 24 hours, the 24-hr PSI for Singapore is forecast to be in the Moderate range.

Activity Guidelines

4    The health impact of haze is dependent on one’s health status, the PSI level, and the length and intensity of outdoor activity. For immediate outdoor activities, please check the 1-hr PM2.5 concentration readings and personal guide. Use the 24-hr PSI forecast and corresponding health advisories for planning next day outdoor activities.

5     For updates, visit our haze microsite (www.haze.gov.sg), the NEA website (www.nea.gov.sg), MSS website (www.weather.gov.sg), mobile app (myEnv) or follow us on NEA Facebook (www.facebook.com/NEASingapore) and NEA Twitter (@NEAsg). For information on the distribution of hotspots detected over the past fortnight in the region, please refer to the ASEAN Specialised Meteorological Centre (ASMC) website at http://asmc.asean.org.

Areas with lighter smoke haze are not indicated as they cannot be clearly discerned from satellite imagery.

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