Air quality in Niagara-on-the-Lake
The US Air Quality Index (EPA) grades air from 0 to 500 using fine particles (PM2.5/PM10), ozone and nitrogen dioxide. 0-50 is Good, 51-100 Moderate, 101-150 Unhealthy for Sensitive Groups, and anything higher affects everyone.
PM2.5
5.2 µg/m³
WHO guideline 15
PM10
5.3 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
12:00 PM
💨
PM2.5 5.2 µg/m³
40Good
1:00 PM
💨
PM2.5 6.8 µg/m³
45Good
2:00 PM
💨
PM2.5 8.8 µg/m³
50Good
3:00 PM
💨
PM2.5 10.8 µg/m³
63Moderate
4:00 PM
💨
PM2.5 12.7 µg/m³
78Moderate
5:00 PM
💨
PM2.5 13.6 µg/m³
81Moderate
6:00 PM
💨
PM2.5 13.7 µg/m³
70Moderate
7:00 PM
💨
PM2.5 14.2 µg/m³
55Moderate
8:00 PM
💨
PM2.5 20.6 µg/m³
69Moderate
9:00 PM
💨
PM2.5 23 µg/m³
74Moderate
10:00 PM
💨
PM2.5 22.9 µg/m³
74Moderate
11:00 PM
💨
PM2.5 23.7 µg/m³
75Moderate
Next few days
daily max · US EPA AQI
Fri
💨
Moderate · UV High
81
Sat
💨
Moderate · UV High
70
Tue
💨
Good · UV Moderate
32