What is the air quality trend in Campbell?

Over the past 15 days, Campbell had an average AQI of 27 based on station measurements. The worst day was 2026-10-09 with AQI 38.

How is Campbell air quality measured?

Air quality in Campbell is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for Campbell, United States

Name: Campbell Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

333h

PM2.5 Station

333h · 56 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	22	22–22	5.2 µg/m³	1h	56
2026-10-20	22	17–56	5.2 µg/m³	24h	48
2026-10-19	24	21–28	5.7 µg/m³	24h	55
2026-10-18	28	12–33	6.8 µg/m³	24h	50
2026-10-17	26	21–28	6.2 µg/m³	24h	55
2026-10-16	28	21–35	6.7 µg/m³	24h	53
2026-10-15	30	25–34	7.1 µg/m³	24h	56
2026-10-14	24	20–32	5.7 µg/m³	24h	56
2026-10-13	26	20–30	6.2 µg/m³	24h	56
2026-10-12	26	23–29	6.3 µg/m³	24h	56
2026-10-11	28	26–31	6.7 µg/m³	24h	56
2026-10-10	31	27–39	7.4 µg/m³	24h	50
2026-10-09	38	29–71	9.3 µg/m³	24h	52
2026-10-08	28	24–31	6.7 µg/m³	24h	56
2026-10-07	27	24–31	6.6 µg/m³	20h	55

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