Air quality in Canada
Air quality in New Brunswick today
Updated
Good: average US AQI 30 across 1 city in New Brunswick Worst now: Dieppe, NB (30); cleanest: Dieppe, NB (30).
Live US AQI, PM2.5 and ozone for cities across New Brunswick, compared with the Canada average.
- Average US AQI
- 30 Good
- Canada average
- 44 78 cities
- Most polluted now
- Dieppe, NB AQI 30
- Cleanest now
- Dieppe, NB AQI 30
- Cities above 100
- 0
Air quality in New Brunswick today
Right now the modelled air quality in New Brunswick averages a US AQI of 30 (Good) across the 1 city we track. By category: 1 Good (of 1).
That is 14 points cleaner than the Canada average of 44, ranking 1 of 10 provinces from cleanest to most polluted.
Dieppe, NB has the worst air at 30 (PM2.5 3.3 µg/m³), and Dieppe, NB the cleanest at 30. No tracked city is above 100, so no group needs to change plans.
New Brunswick cities by AQI (most polluted first)
| City | US AQI | Category | PM2.5 µg/m³ | PM10 µg/m³ | Ozone µg/m³ |
|---|---|---|---|---|---|
| Dieppe | 30 | Good | 3.3 | 4 | 67 |
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 New Brunswick
More
Data: Open-Meteo Air Quality API, Copernicus Atmosphere Monitoring Service (CAMS).