Real-time PM2.5, PM10 air pollution level in Ontario
Last Updated: 2025-07-17 06:54:14 PM (Local Time)
26 °C
Partly cloudy
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St Catharines
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St Catharines, Ontario, Canada
Annual AQI Trends
Most & Least Polluted Months
* This data analysis is from year 2020 - 2025
St Catharines's Locations
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St Catharines
Health Advice For People Living In
St Catharines
0Cigarettes per day
Breathe easy and get active! The air quality is perfect for enjoying outdoor activities.
Source:
Berkeley Earth
As per the current AQI, turn off the air purifier.
Get an Air PurifierSt Catharines
Asthma
Heart Issues
Allergies
Sinus
Cold/Flu
Chronic (COPD)
Low Chances of Asthma
Risk of Asthma symptoms is Low when AQI is Good (0-50)
Mild symptoms such as slight wheezing, occasional cough, and minor shortness of breath
Do's :
Keep track of air quality to plan outdoor activities safely.
Drink water to keep airways moist and reduce irritation.
Include non-allergenic fruits and vegetables that support overall lung health, like apples, pears, and spinach.
Don'ts :
Skip medications that is prescribed by your doctor.
Engage in outdoor activities in early morning during high pollen hours.
Most Polluted Cities 2025
Canada
Analyze the real-time most air polluted cities in the country.
Standard Value
1.
Prince Albert, Canada
2.
Buffalo Narrows, Canada
3.
Yorkton, Canada
4.
Regina, Canada
5.
Bratts Lake No 129, Canada
6.
Meadow Lake, Canada
7.
Brandon, Canada
8.
Estevan, Canada
9.
Flin Flon, Canada
10.
Flin Flon, Canada
Last Updated: 17 Jul 2025, 10:02 PM
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Air Quality FAQs
at St Catharines
Frequently Asked Questions About Air Quality
What is the current AQI level in St Catharines?
The current real-time AQI level in St Catharines is 30 (Good). This was last updated 2025-07-17 06:54:14 PM (Local Time).
When was the best AQI level in St Catharines in the last 24 hours?
The best AQI level was 23 (Good) at 7:09 AM (Local Time) during the last 24 hours.
When was the worst AQI level in St Catharines in the last 24 hours?
The worst AQI level was 62 (Moderate) at 7:09 PM, Jul 16, 2025 (Local Time) during the last 24 hours.
What is the current trend of AQI levels in St Catharines during last 24 hours?
The AQI levels in St Catharines have been fluctuating throughout the last 24 hours. The levels have increased by highest 62 at 7:09 PM, Jul 16, 2025 (Local Time), lowest 23 at 7:09 AM (Local Time).
What actions are recommended as per the current AQI level in St Catharines?
The air quality is satisfactory, and air pollution poses little or no risk. No special precautions are needed; enjoy outdoor activities freely.
Recent AQI Blogs
Read the latest news
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