Singapore air quality deteriorates to unhealthy levels overnight

The 24-hour PSI readings recorded across Singapore's western and central regions had climbed into the unhealthy band by early morning, signalling a sharp decline in air quality overnight. The shift from moderate to unhealthy levels represents a notable worsening of atmospheric conditions across the island's densely populated areas.

Residents in affected regions, particularly in the west and central parts of Singapore, are advised to exercise heightened caution regarding outdoor activities. The unhealthy PSI classification typically indicates that members of the general public may begin to experience health effects, with vulnerable groups including children, the elderly, and those with respiratory or heart conditions facing elevated risk.

The National Environment Agency continues to monitor air quality across Singapore's various regions. Authorities typically recommend that individuals reduce prolonged outdoor exertion and consider using protective masks when venturing outside during periods of elevated pollution. The agency updates PSI readings regularly to keep the public informed of changing conditions.

Singapore's air quality remains subject to transboundary pollution, with regional haze episodes occasionally pushing the city-state's pollutant levels into unhealthy ranges. Residents are advised to check real-time air quality updates and follow health guidance issued by relevant authorities.