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Air Quality History for San Carlos, United States

Historical PM2.5 and AQI trend from monitoring stations near San Carlos, United States.

22
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

334h

PM2.5 Station

334h · 105 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-10-21 36 36–36 8.7 µg/m³ — 1h 105
2026-10-20 22 16–57 5.4 µg/m³ 5.4 24h 92
2026-10-19 23 20–28 5.5 µg/m³ 11.7 24h 104
2026-10-18 34 20–42 8.2 µg/m³ 20.3 24h 96
2026-10-17 30 24–36 7.2 µg/m³ 12.8 24h 106
2026-10-16 31 23–40 7.5 µg/m³ 12.3 24h 101
2026-10-15 28 25–36 6.7 µg/m³ 12.3 24h 109
2026-10-14 25 19–34 5.9 µg/m³ 11.2 24h 109
2026-10-13 25 18–31 6.0 µg/m³ 12.1 24h 109
2026-10-12 26 23–28 6.1 µg/m³ 10.5 24h 110
2026-10-11 28 25–32 6.7 µg/m³ 14.5 24h 110
2026-10-10 30 23–52 7.2 µg/m³ 14.3 24h 98
2026-10-09 37 30–60 9.0 µg/m³ 19.9 24h 102
2026-10-08 29 25–36 7.0 µg/m³ 11.5 24h 110
2026-10-07 26 22–30 6.2 µg/m³ 12.9 21h 106
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