24-hr PSI—
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NEA's official health reference
Air quality now
Singapore
Loading the latest NEA readings…
1-hr PM2.5—
—µg/m³
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Fine particles measured over the last hour
Across the island
24-hr PSI by region. Tap a region to focus on it.
What to do today
Based on the 24-hr PSI, as NEA advises.
Last 24 hours
Hourly readings for Singapore (highest region).
24-hr PSI
Haze situation & outlook
NEA's latest regional assessment, from haze.gov.sg.
Find N95 masks
Collection points for eligible residents, on GoWhere.
Find a mask collection pointgowhere.gov.sg/hazemaskHaze videos
News reports on the haze from CNA.
Watch CNA's latest haze videosCNA Haze VideosWhat's driving the PSI
24-hr sub-index for each pollutant. The PSI is the highest of these.
How to read these numbers
24-hr PSI is NEA's official index, averaged over the past 24 hours. It's the reading health advisories, school and work decisions are based on.
1-hr PM2.5 shows what the air is like right now: the concentration of fine particles over the past hour, in µg/m³, with NEA's band from I (Normal) to IV (Very high). It swings more from hour to hour, so use it for immediate plans such as a run or a walk.
| 0–55 | Band I · Normal |
| 56–150 | Band II · Elevated |
| 151–250 | Band III · High |
| 251 and above | Band IV · Very high |
24-hr PSI bands:
| 0–50 | Good |
| 51–100 | Moderate |
| 101–200 | Unhealthy |
| 201–300 | Very unhealthy |
| Above 300 | Hazardous |
All readings come from NEA's haze.gov.sg, the official source for haze forecasts and advisories.