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Air Quality History for San Marcos, El Salvador

Historical PM2.5 and AQI trend from monitoring stations near San Marcos, El Salvador.

15
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

326h

PM2.5 Station

326h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-10-21 14 1–31 3.2 µg/m³ — 12h 1
2026-10-20 26 8–59 6.5 µg/m³ 7.0 22h 2
2026-10-19 24 5–68 6.3 µg/m³ 6.9 24h 1
2026-10-18 17 4–30 4.0 µg/m³ 4.0 24h 1
2026-10-17 54 21–73 15.6 µg/m³ 15.8 24h 2
2026-10-16 67 46–77 19.8 µg/m³ 19.2 23h 2
2026-10-15 44 21–68 11.6 µg/m³ 10.7 24h 2
2026-10-14 30 6–64 7.3 µg/m³ 8.2 24h 2
2026-10-13 36 20–69 9.1 µg/m³ 9.4 24h 2
2026-10-12 30 16–63 7.3 µg/m³ 8.0 24h 2
2026-10-11 54 30–71 14.4 µg/m³ 15.6 24h 2
2026-10-10 52 37–66 13.2 µg/m³ 13.5 24h 2
2026-10-09 70 22–88 22.3 µg/m³ 21.5 24h 2
2026-10-08 76 43–86 24.0 µg/m³ 23.3 24h 2
2026-10-07 62 36–75 18.0 µg/m³ 19.6 5h 2
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