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Air Quality History for Niigata, Japan

Historical PM2.5 and AQI trend from monitoring stations near Niigata, Japan.

37
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

465h

PM2.5 Station

465h · 4 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-05-29 35 24–55 8.4 µg/m³ 14h 3
2026-05-28 31 17–46 7.5 µg/m³ 23h 3
2026-05-27 32 17–68 7.9 µg/m³ 24h 3
2026-05-26 32 11–54 7.8 µg/m³ 24h 3
2026-05-25 31 8–55 7.6 µg/m³ 22h 3
2026-05-24 38 12–67 9.2 µg/m³ 22h 3
2026-05-23 35 21–54 8.5 µg/m³ 24h 3
2026-05-22 33 18–52 7.9 µg/m³ 23h 4
2026-05-21 28 12–49 6.7 µg/m³ 24h 3
2026-05-20 33 16–55 8.1 µg/m³ 24h 3
2026-05-19 35 12–73 8.6 µg/m³ 23h 3
2026-05-18 41 17–59 10.0 µg/m³ 24h 3
2026-05-17 40 13–127 10.5 µg/m³ 23h 3
2026-05-16 44 14–59 10.9 µg/m³ 21h 3
2026-05-15 43 10–63 10.6 µg/m³ 24h 3
2026-05-14 44 14–60 10.7 µg/m³ 24h 3
2026-05-13 32 21–53 7.7 µg/m³ 23h 3
2026-05-12 31 19–50 7.5 µg/m³ 24h 3
2026-05-11 30 15–54 7.2 µg/m³ 23h 3
2026-05-10 34 22–48 8.2 µg/m³ 24h 3
2026-05-09 31 21–46 7.4 µg/m³ 8h 3
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