Air quality in San Mateo
24
Fair
Air Quality Index
Air quality is acceptable. Extremely sensitive people may experience minor symptoms.
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Pollutants
PM2.5
13.4 µg/m³
PM10
20.8 µg/m³
NO₂
7.1 µg/m³
O₃
61 µg/m³
SO₂
0.8 µg/m³
CO
110 µg/m³