North Singapore air quality now
As of 3:00 am SGT, NEA’s 24-hr PSI for North Singapore is 129 (Unhealthy), with 1-hr PM2.5 at 74 µg/m³. Covers areas nearest the North reporting point, such as Woodlands, Yishun, Sembawang, Mandai. MOH health guidance included.
| Region | 24-hr PSI (official) | 1-hr PM2.5 µg/m³ (official) | 24-hr PM2.5 µg/m³ (official) | US AQI, PM2.5 only (AirAware estimate) |
|---|---|---|---|---|
| North | 129 (Unhealthy) | 74 · Band II · Elevated | 83 | 170 (Unhealthy) |
MOH advice at North 24-hr PSI 129 (Unhealthy): healthy persons: reduce prolonged or strenuous outdoor physical exertion; elderly, pregnant women and children: minimise prolonged or strenuous outdoor physical exertion; people with chronic lung or heart disease: avoid prolonged or strenuous outdoor physical exertion.
Areas covered by the North reading
NEA publishes one reading per region and doesn’t publish region boundaries. These towns are nearest the North reporting point, so treat this as a guide, not an official boundary: Woodlands, Yishun, Sembawang, Mandai.
All five regions
| Region | 24-hr PSI (official) | 1-hr PM2.5 µg/m³ (official) | 24-hr PM2.5 µg/m³ (official) | US AQI, PM2.5 only (AirAware estimate) |
|---|---|---|---|---|
| North | 129 (Unhealthy) | 74 · Band II · Elevated | 83 | 170 (Unhealthy) |
| South | 171 (Unhealthy) | 98 · Band II · Elevated | 122 | 198 (Unhealthy) |
| East | 180 (Unhealthy) | 89 · Band II · Elevated | 131 | 206 (Very Unhealthy) |
| West | 222 (Very Unhealthy) | 135 · Band II · Elevated | 171 | 246 (Very Unhealthy) |
| Central | 184 (Unhealthy) | 104 · Band II · Elevated | 135 | 210 (Very Unhealthy) |
What the readings mean for you
| 24-hr PSI | Healthy persons | Elderly, pregnant women, children | Chronic lung or heart disease |
|---|---|---|---|
| 0–100 Good · Moderate | Normal activities | Normal activities | Normal activities |
| 101–200 Unhealthy | Reduce prolonged or strenuous outdoor physical exertion | Minimise prolonged or strenuous outdoor physical exertion | Avoid prolonged or strenuous outdoor physical exertion |
| 201–300 Very unhealthy | Avoid prolonged or strenuous outdoor physical exertion | Minimise outdoor activity | Avoid outdoor activity |
| 301+ Hazardous | Minimise outdoor activity | Avoid outdoor activity | Avoid outdoor activity |
| 1-hr PM2.5 | Everyone | Vulnerable persons |
|---|---|---|
| Band I · Normal (0–55 µg/m³) | Continue with normal activities | Continue with normal activities |
| Band II · Elevated (56–150 µg/m³) | Reduce strenuous outdoor activity for the next hour | Avoid strenuous outdoor activity for the next hour |
| Band III · High (151–250 µg/m³) | Avoid strenuous outdoor activity for the next hour | Avoid all outdoor activity for the next hour; may wear a mask to reduce exposure |
| Band IV · Very high (251+ µg/m³) | Minimise all outdoor activity for the next hour; may wear a mask to reduce exposure | Avoid all outdoor activity for the next hour; may wear a mask to reduce exposure |
Source: National Environment Agency (NEA) via data.gov.sg, Singapore Open Data Licence v1.0. Health guidance: Ministry of Health (MOH) and US EPA. AirAware is not affiliated with NEA, MOH or the US EPA and does not provide medical advice. For official information, see haze.gov.sg.
Data: latest readings (JSON) · 7-day history (JSON) · llms.txt