What is the air quality trend in Pleasanton?

Over the past 21 days, Pleasanton had an average AQI of 25 based on station measurements. The worst day was 2026-08-19 with AQI 42.

How is Pleasanton air quality measured?

Air quality in Pleasanton 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 Pleasanton, United States

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

477h

PM2.5 Station

477h · 106 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-09-05	27	24–52	6.5 µg/m³	15h	104
2026-09-04	23	13–28	5.5 µg/m³	24h	105
2026-09-03	23	19–26	5.5 µg/m³	24h	104
2026-09-02	26	20–30	6.3 µg/m³	24h	103
2026-09-01	29	20–60	7.0 µg/m³	24h	97
2026-08-31	32	27–37	7.5 µg/m³	24h	106
2026-08-30	33	29–35	8.0 µg/m³	24h	105
2026-08-29	25	21–28	6.1 µg/m³	24h	106
2026-08-28	24	20–27	5.7 µg/m³	24h	107
2026-08-27	20	16–26	4.9 µg/m³	24h	107
2026-08-26	21	16–27	5.1 µg/m³	24h	107
2026-08-25	19	17–22	4.5 µg/m³	24h	106
2026-08-24	24	18–32	5.6 µg/m³	24h	106
2026-08-23	24	19–38	5.8 µg/m³	24h	105
2026-08-22	21	16–25	5.1 µg/m³	24h	105
2026-08-21	17	14–23	4.1 µg/m³	24h	105
2026-08-20	21	13–34	5.0 µg/m³	24h	102
2026-08-19	42	36–48	10.1 µg/m³	24h	99
2026-08-18	31	23–42	7.4 µg/m³	24h	95
2026-08-17	28	23–38	6.8 µg/m³	24h	98
2026-08-16	29	27–31	6.9 µg/m³	6h	102

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