Residents across Singapore reported a faint but persistent burning smell in recent days — an invisible presence that lingered in corridors, drifted through open windows, and stirred uneasy memories of past haze episodes.

According to the National Environment Agency (NEA), the odour may be linked to gases and particulate matter from recent peatland and vegetation fires in the surrounding region. While no large-scale local fires were detected, prevailing wind conditions can carry combustion by-products across borders, sometimes long after flames have been extinguished.

Peatland fires are particularly known for producing dense smoke and distinct smells. Unlike surface vegetation fires, peat burns underground, smouldering slowly and releasing gases over extended periods. Even when air quality readings remain within acceptable ranges, the scent of combustion can travel far — especially under certain atmospheric conditions such as light winds or temperature inversions.

NEA noted that while the smell may be noticeable, overall air quality levels have largely remained in the moderate range. Authorities continue to monitor the Pollutant Standards Index (PSI) and satellite hotspot data to assess any emerging risks. At present, there is no indication of a severe haze event.

Singapore’s geographical position places it downwind of regional agricultural and forested zones at different times of the year. During dry spells, land-clearing fires or naturally occurring peat blazes in neighbouring areas can influence local air conditions. Even trace amounts of airborne compounds can produce a discernible odour without significantly affecting health indices.

Still, the scent itself can trigger concern. For many residents, memories of past haze crises — when skies turned grey and masks became daily wear — remain vivid. Officials have reassured the public that the current situation differs markedly from those episodes, with no spike in hazardous pollutant concentrations recorded.

As a precaution, individuals sensitive to smoke — including the elderly, young children, and those with respiratory conditions — are advised to monitor official air quality updates and reduce prolonged outdoor activity if conditions worsen.

For now, the smell serves as a reminder that air does not recognize borders. Winds shift, landscapes burn, and cities miles away may briefly share in the atmosphere of distant events. Though the skyline remains clear, the faint scent on the breeze speaks of ecosystems beyond the horizon — and of the interconnectedness carried in every breath.

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Sources

National Environment Agency The Straits Times Channel NewsAsia