Singapore's air quality deteriorates sharply as PSI enters 'very unhealthy' zone

Air quality in Singapore has deteriorated substantially overnight, with the Pollutant Standards Index in the central region climbing into the 'very unhealthy' classification. The 24-hour PSI measurement reached 212 at 6am, representing the highest level recorded during the current haze episode.

The sharp overnight decline in air quality has prompted increased concerns among residents and authorities monitoring the regional haze situation. The central region's reading of 212 places air quality in a range typically associated with respiratory health impacts, particularly for vulnerable populations including children, the elderly, and individuals with pre-existing respiratory conditions.

The National Environment Agency continues to track air quality readings across different regions of the island. Residents have been advised to limit outdoor activities and to consider using N95 masks when venturing outside, particularly during peak pollution hours.

Regional meteorological patterns and transboundary pollution remain key factors influencing Singapore's air quality. The situation is expected to be monitored closely in the coming hours as weather conditions evolve.