Air quality in St. Catharines
31
Fair
Air Quality Index
Air quality is acceptable. Extremely sensitive people may experience minor symptoms.
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Pollutants
PM2.5
3.9 µg/m³
PM10
4 µg/m³
NO₂
5.4 µg/m³
O₃
78 µg/m³
SO₂
1.7 µg/m³
CO
189 µg/m³