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Air Quality History for Leiden, Netherlands

Historical PM2.5 and AQI trend from monitoring stations near Leiden, Netherlands.

25
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

476h

PM2.5 Station

476h · 1 station

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-06-09 3 1–6 0.6 µg/m³ 1.3 12h 2
2026-06-08 17 1–39 4.2 µg/m³ 5.7 24h 3
2026-06-07 11 3–24 2.7 µg/m³ 5.2 24h 3
2026-06-06 16 2–70 3.9 µg/m³ 5.4 24h 3
2026-06-05 6 1–18 1.5 µg/m³ 3.5 24h 2
2026-06-04 11 2–41 2.6 µg/m³ 5.9 24h 2
2026-06-03 10 2–19 2.3 µg/m³ 3.8 24h 3
2026-06-02 28 2–70 7.0 µg/m³ 9.2 24h 3
2026-06-01 27 2–67 6.8 µg/m³ 8.8 23h 3
2026-05-31 49 25–82 13.4 µg/m³ 15.2 24h 3
2026-05-30 51 12–128 15.3 µg/m³ 17.9 24h 3
2026-05-29 60 6–117 19.2 µg/m³ 22.3 24h 3
2026-05-28 8 1–21 1.8 µg/m³ 2.9 22h 3
2026-05-27 22 2–100 6.4 µg/m³ 7.7 24h 3
2026-05-26 40 10–117 11.4 µg/m³ 13.4 24h 3
2026-05-25 19 4–38 4.6 µg/m³ 5.3 24h 3
2026-05-24 59 8–129 19.0 µg/m³ 22.7 24h 3
2026-05-23 79 25–153 26.3 µg/m³ 30.7 24h 3
2026-05-22 53 22–86 14.6 µg/m³ 16.3 23h 3
2026-05-21 32 15–53 7.7 µg/m³ 11.3 24h 3
2026-05-20 34 20–54 8.2 µg/m³ 13.5 12h 3
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