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Air Quality History for San Leandro, United States

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

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

Air Quality Index Station

478h

PM2.5 Station

478h · 103 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-10-20 20 16–46 4.9 µg/m³ 5.4 20h 91
2026-10-19 23 19–28 5.5 µg/m³ 11.7 24h 104
2026-10-18 34 20–41 8.1 µg/m³ 20.3 24h 97
2026-10-17 30 24–35 7.2 µg/m³ 12.8 24h 108
2026-10-16 32 23–42 7.6 µg/m³ 12.3 24h 103
2026-10-15 28 24–35 6.6 µg/m³ 12.3 24h 110
2026-10-14 25 21–34 5.9 µg/m³ 11.2 24h 111
2026-10-13 25 18–30 5.9 µg/m³ 12.1 24h 111
2026-10-12 25 23–28 6.1 µg/m³ 10.5 24h 111
2026-10-11 28 25–31 6.7 µg/m³ 14.5 24h 111
2026-10-10 29 23–41 7.0 µg/m³ 14.3 24h 99
2026-10-09 37 30–53 8.9 µg/m³ 19.9 24h 103
2026-10-08 29 25–36 6.9 µg/m³ 11.5 24h 111
2026-10-07 26 23–29 6.1 µg/m³ 12.7 24h 107
2026-10-06 31 28–38 7.4 µg/m³ 13.2 24h 108
2026-10-05 31 27–35 7.4 µg/m³ 8.5 24h 112
2026-10-04 36 25–42 8.6 µg/m³ 4.2 24h 102
2026-10-03 38 30–51 9.1 µg/m³ 7.6 24h 107
2026-10-02 37 25–59 9.0 µg/m³ 6.9 24h 110
2026-10-01 27 20–36 6.4 µg/m³ 2.2 24h 111
2026-09-30 32 30–34 7.6 µg/m³ 2.7 2h 110
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