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Air Quality History for Köln, Germany

Historical PM2.5 and AQI trend from monitoring stations near Köln, Germany.

31
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

476h

PM2.5 Station

476h · 3 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-10-21 74 12–104 24.8 µg/m³ 27.2 12h 3
2026-10-20 70 42–99 21.3 µg/m³ 23.3 24h 3
2026-10-19 60 33–93 17.0 µg/m³ 18.8 23h 2
2026-10-18 27 5–64 6.8 µg/m³ 7.7 24h 2
2026-10-17 13 4–35 3.0 µg/m³ 3.6 24h 2
2026-10-16 31 4–80 8.6 µg/m³ 9.3 24h 3
2026-10-15 28 7–45 6.7 µg/m³ 7.1 24h 3
2026-10-14 25 6–70 6.5 µg/m³ 7.2 24h 3
2026-10-13 16 5–60 4.0 µg/m³ 4.3 24h 3
2026-10-12 15 1–27 3.5 µg/m³ 3.8 24h 3
2026-10-11 11 4–19 2.5 µg/m³ 3.2 24h 2
2026-10-10 8 4–17 2.0 µg/m³ 2.6 24h 2
2026-10-09 6 4–17 1.3 µg/m³ 1.9 22h 2
2026-10-08 22 3–135 6.7 µg/m³ 8.2 24h 2
2026-10-07 47 21–101 12.9 µg/m³ 13.6 24h 3
2026-10-06 60 7–103 18.6 µg/m³ 19.7 24h 3
2026-10-05 63 34–110 19.0 µg/m³ 20.6 24h 3
2026-10-04 40 12–71 10.1 µg/m³ 10.5 24h 3
2026-10-03 37 5–86 10.0 µg/m³ 10.8 24h 3
2026-10-02 45 15–92 12.3 µg/m³ 13.3 24h 3
2026-10-01 28 18–38 6.8 µg/m³ 7.3 11h 3
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