Today's hourly PM2.5
Dashed lines mark NEA's 1-hour PM2.5 bands: 55 (Elevated), 150 (High), 250 (Very High).
All five regions
Region PM2.5 1-h PSI 24-h PSI band
Tap a row to view that region. NEA publishes five regional readings and no boundaries; "your region" is the one whose NEA label point is nearest to you.
Readings: NEA via data.gov.sg (PM2.5 and PSI hourly, about 30 minutes past the hour; rain every 5 minutes; lightning and heat stress every few minutes; UV hourly). Advisory wording: haze.gov.sg and NEA's heat stress advisory. Wind, rain and heat from the nearest NEA station.
PSI is a 24-hour average, so it lags. For the next few hours, watch the 1-hour PM2.5. Hourly readings are 1-hour averages; the page refreshes every 10 minutes.