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Air Quality History for Port Arthur, United States

Historical PM2.5 and AQI trend from monitoring stations near Port Arthur, United States.

53
Current AQI
Moderate Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

421h

PM2.5 Station

421h · 2 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg Hours Stations
2026-10-21 36 25–52 8.6 µg/m³ 4h 2
2026-10-20 40 22–124 10.2 µg/m³ 22h 2
2026-10-19 30 15–48 7.2 µg/m³ 21h 3
2026-10-18 19 3–58 4.6 µg/m³ 22h 2
2026-10-17 33 7–50 7.9 µg/m³ 17h 2
2026-10-16 33 13–85 8.4 µg/m³ 18h 2
2026-10-15 32 3–76 8.0 µg/m³ 21h 2
2026-10-14 28 16–55 6.8 µg/m³ 23h 3
2026-10-13 20 4–39 4.7 µg/m³ 24h 3
2026-10-12 22 8–82 5.6 µg/m³ 20h 2
2026-10-11 22 9–60 5.3 µg/m³ 22h 3
2026-10-10 30 12–89 7.7 µg/m³ 22h 2
2026-10-09 34 2–61 8.3 µg/m³ 23h 2
2026-10-08 38 15–62 9.2 µg/m³ 22h 2
2026-10-07 33 6–66 8.0 µg/m³ 22h 2
2026-10-06 26 9–52 6.3 µg/m³ 23h 2
2026-10-05 26 13–39 6.2 µg/m³ 21h 2
2026-10-04 28 11–54 6.7 µg/m³ 21h 3
2026-10-03 25 8–65 6.1 µg/m³ 18h 2
2026-10-02 28 5–104 7.7 µg/m³ 21h 2
2026-10-01 29 5–79 7.6 µg/m³ 14h 2
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