West Singapore air quality now
As of 3:00 am SGT, NEA’s 24-hr PSI for West Singapore is 222 (Very Unhealthy), with 1-hr PM2.5 at 135 µg/m³. Covers areas nearest the West reporting point, such as Jurong West, Choa Chu Kang, Jurong East, Tengah, Boon Lay. 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) |
|---|---|---|---|---|
| West | 222 (Very Unhealthy) | 135 · Band II · Elevated | 171 | 246 (Very Unhealthy) |
MOH advice at West 24-hr PSI 222 (Very unhealthy): healthy persons: avoid prolonged or strenuous outdoor physical exertion; elderly, pregnant women and children: minimise outdoor activity; people with chronic lung or heart disease: avoid outdoor activity.
Areas covered by the West reading
NEA publishes one reading per region and doesn’t publish region boundaries. These towns are nearest the West reporting point, so treat this as a guide, not an official boundary: Jurong West, Choa Chu Kang, Jurong East, Tengah, Boon Lay, Pioneer, Tuas, Lim Chu Kang.
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