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Air Quality History for Ulsan, South Korea

Historical PM2.5 and AQI trend from monitoring stations near Ulsan, South Korea.

45
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

334h

PM2.5 Station

334h · 34 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-10-21 42 32–50 10.0 µg/m³ 7h 31
2026-10-20 37 25–52 8.9 µg/m³ 24h 35
2026-10-19 36 15–48 8.7 µg/m³ 24h 37
2026-10-18 38 16–56 9.3 µg/m³ 24h 33
2026-10-17 43 23–62 10.8 µg/m³ 24h 32
2026-10-16 52 21–72 13.8 µg/m³ 24h 36
2026-10-15 39 25–55 9.3 µg/m³ 24h 35
2026-10-14 37 22–90 9.4 µg/m³ 24h 37
2026-10-13 50 30–70 12.9 µg/m³ 24h 38
2026-10-12 50 27–69 12.9 µg/m³ 24h 34
2026-10-11 55 30–67 14.4 µg/m³ 24h 44
2026-10-10 60 30–72 16.6 µg/m³ 24h 39
2026-10-09 58 25–75 16.1 µg/m³ 24h 41
2026-10-08 52 25–68 13.6 µg/m³ 24h 39
2026-10-07 45 34–55 10.9 µg/m³ 15h 41
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