Central Singapore's air quality deteriorates to unhealthy threshold

Air quality in central Singapore has deteriorated markedly, with the Pollutant Standards Index (PSI) reaching 100 on Monday, crossing into the unhealthy category. The reading represents a significant spike from previous levels and marks a concerning shift for the densely populated area.

In contrast, other regions across the island continue to register PSI readings in the moderate range, suggesting the air quality degradation is geographically concentrated. The disparity highlights how localized air pollution patterns can significantly affect specific zones within the city-state.

The unhealthy PSI threshold typically prompts health advisories, particularly for vulnerable populations including children, the elderly, and those with respiratory or cardiovascular conditions. When the index reaches this level, authorities generally recommend that residents limit outdoor activities and consider using air purifiers indoors.

The National Environment Agency has been monitoring air quality across Singapore's monitoring stations. Residents in central areas are urged to check real-time PSI updates and take appropriate precautions to protect their health during this period of degraded air quality.