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Air quality near St. Catharines, Ontario
Air quality index (AQI) and PM2.5 air pollution near St. Catharines, Ontario
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Air Quality Map
Real-time St. Catharines air pollution map
AIR QUALITY DATA CONTRIBUTORS
Station operated by
Government of Ontario, Ministry of the Environment
Government
Pollen
What is the pollen count in Ontario today?
 | Index | Moderate | |
 | Tree pollen | Low | |
 | Grass pollen | Low | |
 | Weed pollen | Moderate |
Weather
What is the current weather near St. Catharines, Ontario?
| Weather | Broken clouds |
| Temperature | 62.6°F |
| Humidity | 72% |
| Wind | 10.4 mp/h |
| Pressure | 30.3 Hg |
live aqi city ranking
Real-time Canada city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Fort Mckay, Alberta | 97 |
| 2 | Yellowknife, Northwest Territories | 89 |
| 3 | Sault Ste Marie, Ontario | 75 |
| 4 | Hamilton, Ontario | 73 |
| 5 | Kitchener, Ontario | 73 |
| 6 | Sudbury, Ontario | 70 |
| 7 | Vanderhoof, British Columbia | 69 |
| 8 | Winnipeg, Manitoba | 68 |
| 9 | Brampton, Ontario | 66 |
| 10 | Mississauga, Ontario | 66 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live aqi station ranking
Real-time St. Catharines air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | St. Catharines | 57 |
(local time)
SEE WORLD AQI RANKING
US AQI
57
live AQI index
Moderate
Overview
What is the current air quality near St. Catharines, Ontario?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Moderate | 57 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 15µg/m³ | |
| NO2 | 10.9µg/m³ | |
Health Recommendations
How to protect from air pollution in St. Catharines?
 | Sensitive groups should wear a mask outdoors GET A MASK |
 | Sensitive groups should run an air purifier GET AN AIR PURIFIER |
 | Close your windows to avoid dirty outdoor air GET A MONITOR |
 | Sensitive groups should reduce outdoor exercise |
News
The latest air quality news and resources.
Forecast
St. Catharines, Ontario air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Sunday, Sep 24 | Good 47 AQI US  | |||
| Monday, Sep 25 | Moderate 51 AQI US | |||
| Tuesday, Sep 26 | Moderate 60 AQI US | |||
| Today | Moderate 57 AQI US | | 69.8° 59° |  15.7 mp/h |
| Thursday, Sep 28 | Good 24 AQI US | | 69.8° 55.4° | 8.9 mp/h |
| Friday, Sep 29 | Good 35 AQI US | | 68° 60.8° | 8.9 mp/h |
| Saturday, Sep 30 | Moderate 52 AQI US | | 69.8° 64.4° | 4.5 mp/h |
| Sunday, Oct 1 | Moderate 61 AQI US |  | 73.4° 62.6° | 8.9 mp/h |
| Monday, Oct 2 | Moderate 64 AQI US |  | 75.2° 62.6° | 13.4 mp/h |
| Tuesday, Oct 3 | Moderate 65 AQI US |  60% | 78.8° 64.4° | 8.9 mp/h |
Interested in hourly forecast? Get the app
Historical
Historic air quality graph: St. Catharines, Ontario
How to best protect from air pollution?
St. Catharines air quality data attribution
Contributor
Government
Data sources
Where is the cleanest air quality in St. Catharines?
AQI US, Metric