Singapore’s risk of transboundary haze is primarily determined by regional fire activity, prevailing wind patterns, and climate phenomena. During the Southwest Monsoon season between June and October, land and forest fires in neighboring areas, particularly in Sumatra and Kalimantan, produce smoke that can be carried toward Singapore. The severity of haze conditions is further influenced by climate drivers such as El Niño and a positive Indian Ocean Dipole, which cause prolonged dry weather and increase the likelihood of widespread regional fires.
- Regional hotspot activity and peatland fires in Sumatra and Kalimantan are the primary sources of smoke haze affecting Singapore.
- The Southwest Monsoon season, occurring typically between June and October, brings prevailing winds that blow smoke toward the island.
- Climate events like El Niño and a positive Indian Ocean Dipole suppress rainfall and create hotter, drier conditions, raising fire susceptibility.
- Air quality is measured using PM2.5 concentrations and the Pollutant Standards Index (PSI) to assess health risks and guide public advisories.
Based in Singapore, CNA (Channel News Asia) covers global developments with an Asian perspective, with correspondents based in major cities across Asia, including Kuala Lumpur, Jakarta, Bangkok, Tokyo, Seoul and Beijing, as well as in New York, Washington D.C. and London.
Official website: https://www.channelnewsasia.com/
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