Air quality in Australia
Air quality in Western Australia today
Updated
Good: average US AQI 47 across 3 cities in Western Australia Worst now: Perth (53); cleanest: Geraldton (36).
Live US AQI, PM2.5 and ozone for cities across Western Australia, compared with the Australia average.
- Average US AQI
- 47 Good
- Australia average
- 29 27 cities
- Most polluted now
- Perth AQI 53
- Cleanest now
- Geraldton AQI 36
- Cities above 100
- 0
Air quality in Western Australia today
Right now the modelled air quality in Western Australia averages a US AQI of 47 (Good) across the 3 cities we track. By category: 1 Good, 2 Moderate (of 3).
That is 18 points worse than the Australia average of 29, ranking 8 of 8 states from cleanest to most polluted.
Perth has the worst air at 53 (PM2.5 8.8 µg/m³), and Geraldton the cleanest at 36. No tracked city is above 100, so no group needs to change plans.
Western Australia cities by AQI (most polluted first)
| City | US AQI | Category | PM2.5 µg/m³ | PM10 µg/m³ | Ozone µg/m³ |
|---|---|---|---|---|---|
| Perth | 53 | Moderate | 8.8 | 13 | 37 |
| Albany | 52 | Moderate | 4 | 7 | 48 |
| Geraldton | 36 | Good | 8.7 | 14 | 39 |
What the US AQI numbers mean
| US AQI | Category | What it means |
|---|---|---|
| 0-50 | Good | Air quality is satisfactory and poses little or no risk; a good time for outdoor activity. |
| 51-100 | Moderate | Acceptable for most people. Unusually sensitive people should consider shortening long or heavy exertion outdoors. |
| 101-150 | Unhealthy for Sensitive Groups | People with heart or lung disease, older adults, children and teens should cut back on prolonged or heavy exertion outdoors. |
| 151-200 | Unhealthy | Everyone should reduce prolonged or heavy exertion outdoors; sensitive groups should avoid it and keep windows closed. |
| 201-300 | Very Unhealthy | Health alert: everyone should avoid prolonged or heavy exertion outdoors, and sensitive groups should stay indoors. |
| 301-500 | Hazardous | Emergency conditions: everyone should avoid all outdoor physical activity and stay indoors with filtered air if possible. The scale tops out at 500; heavier dust or smoke is shown as 500. |
Modelled by CAMS (Copernicus) via Open-Meteo, refreshed twice a day; read hour by hour from the forecast.
Cities in Western Australia
More
Data: Open-Meteo Air Quality API, Copernicus Atmosphere Monitoring Service (CAMS).