Air quality in Singapore has improved, with hourly PM2.5 readings now at normal levels islandwide. As of 8am today, the only region recording unhealthy air quality was the west, based on the 24-hour Pollutant Standards Index (PSI). This indicates a broader improvement in air conditions across the nation. The readings suggest the dissipating of earlier pollution concerns. Officials continue to monitor the situation closely to ensure sustained air quality. Residents are advised to stay informed through official channels for updates and health advisories. The improvement brings relief after recent periods of haze and particulate matter concerns in Singapore.