What is the air quality trend in UC Irvine?

Over the past 21 days, UC Irvine had an average AQI of 40 based on station measurements. The worst day was 2026-05-20 with AQI 71.

How is UC Irvine air quality measured?

Air quality in UC Irvine 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 UC Irvine, United States

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

Historical PM2.5 and AQI trend from monitoring stations near UC Irvine, 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 · 95 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-06-09	36	35–36	8.5 µg/m³	5h	97
2026-06-08	36	32–42	8.7 µg/m³	24h	95
2026-06-07	35	33–38	8.4 µg/m³	24h	96
2026-06-06	47	39–53	11.3 µg/m³	24h	93
2026-06-05	62	52–73	17.3 µg/m³	24h	97
2026-06-04	53	41–63	13.6 µg/m³	24h	97
2026-06-03	50	33–65	12.8 µg/m³	24h	97
2026-06-02	52	43–59	13.1 µg/m³	24h	97
2026-06-01	44	33–59	10.8 µg/m³	24h	86
2026-05-31	41	25–54	9.7 µg/m³	24h	96
2026-05-30	22	15–30	5.4 µg/m³	24h	98
2026-05-29	17	14–20	4.1 µg/m³	24h	98
2026-05-28	23	17–67	5.6 µg/m³	24h	90
2026-05-27	22	19–25	5.3 µg/m³	24h	97
2026-05-26	24	22–27	5.7 µg/m³	24h	97
2026-05-25	27	24–35	6.5 µg/m³	24h	97
2026-05-24	37	30–42	8.8 µg/m³	24h	98
2026-05-23	46	40–49	11.0 µg/m³	24h	96
2026-05-22	49	36–57	12.1 µg/m³	24h	94
2026-05-21	50	42–58	12.3 µg/m³	24h	98
2026-05-20	71	55–80	21.7 µg/m³	16h	98

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