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Air quality in Thunder Bay
Air quality index (AQI) and PM2.5 air pollution in Thunder Bay
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Thunder Bay Air Quality Map
Real-time Thunder Bay air pollution map
AIR QUALITY DATA CONTRIBUTORS
2 Contributors
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Pollen
What is the pollen count in Thunder Bay today?
 | Index | Low | |
 | Tree pollen | Low | |
 | Grass pollen | None | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Thunder Bay?
| Weather | Clear sky |
| Temperature | 62.6°F |
| Humidity | 51% |
| Wind | 6.8 mp/h |
| Pressure | 29.9 Hg |
live aqi city ranking
Real-time Canada city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Mississauga, Ontario | 59 |
| 2 | Thunder Bay, Ontario | 57 |
| 3 | Maniwaki, Quebec | 56 |
| 4 | Oshawa, Ontario | 55 |
| 5 | Toronto, Ontario | 55 |
| 6 | Hamilton, Ontario | 54 |
| 7 | Kitchener, Ontario | 53 |
| 8 | Sault Ste Marie, Ontario | 53 |
| 9 | La Tuque, Quebec | 52 |
| 10 | Oakville, Ontario | 52 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live Thunder Bay aqi ranking
Real-time Thunder Bay air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | Bears' Cave | 53 |
| 2 | Simon Fraser Drive | 52 |
| 3 | Ontario Ministry of the Environment Thunder Bay | 26 |
(local time)
SEE WORLD AQI RANKING
US AQI
53
live AQI index
Moderate
Overview
What is the current air quality in Thunder Bay?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Moderate | 53 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 10.3µg/m³ | |
| O3 | 64µg/m³ | |
| NO2 | 7µg/m³ | |
!
PM2.5
x2.1
PM2.5 concentration in Thunder Bay is currently 2.1 times the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Thunder Bay?
 | Sensitive groups should reduce outdoor exercise |
 | Close your windows to avoid dirty outdoor air GET A MONITOR |
 | Sensitive groups should wear a mask outdoors GET A MASK |
 | Sensitive groups should run an air purifier GET AN AIR PURIFIER |
Forecast
Thunder Bay air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Thursday, May 30 | Good 26 AQI US  |  | 64.4° 44.6° |  8.9 mp/h |
| Friday, May 31 | Good 29 AQI US | | 57.2° 50° | 6.7 mp/h |
| Saturday, Jun 1 | Good 41 AQI US | | 62.6° 46.4° | 8.9 mp/h |
| Today | Moderate 53 AQI US | | 62.6° 46.4° | 8.9 mp/h |
| Monday, Jun 3 | Good 38 AQI US | 100% | 51.8° 44.6° | 4.5 mp/h |
| Tuesday, Jun 4 | Good 48 AQI US | 60% | 57.2° 48.2° | 6.7 mp/h |
| Wednesday, Jun 5 | Good 30 AQI US | 100% | 60.8° 51.8° | 8.9 mp/h |
| Thursday, Jun 6 | Good 11 AQI US | 80% | 51.8° 48.2° | 13.4 mp/h |
| Friday, Jun 7 | Good 6 AQI US | 70% | 60.8° 46.4° | 15.7 mp/h |
| Saturday, Jun 8 | Good 8 AQI US | 60% | 69.8° 55.4° | 11.2 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
How to best protect from air pollution?
Thunder Bay air quality data attribution
2Contributors
- AirGradient
1 station
Corporate Contributor
- 1 Anonymous contributor
1 station
Anonymous Contributor
3 Data sources
Data validated and calibrated by IQAirWhere is the cleanest air quality in Thunder Bay?
AQI US, Metric