What is the air quality trend in Orange?

Over the past 15 days, Orange had an average AQI of 57 based on station measurements. The worst day was 2026-08-05 with AQI 143.

How is Orange air quality measured?

Air quality in Orange 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 Orange, United States

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

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

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

225h

PM2.5 Station

225h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-08-08	41	13–76	11.8 µg/m³	3h	1
2026-08-07	43	13–152	11.6 µg/m³	17h	1
2026-08-06	97	25–206	40.6 µg/m³	17h	2
2026-08-05	143	34–304	71.3 µg/m³	15h	2
2026-08-04	98	25–317	46.7 µg/m³	15h	1
2026-08-03	66	28–195	24.0 µg/m³	19h	1
2026-08-02	39	10–62	9.6 µg/m³	14h	1
2026-08-01	42	26–59	10.3 µg/m³	14h	1
2026-07-31	42	25–82	10.7 µg/m³	17h	1
2026-07-30	44	21–65	11.2 µg/m³	19h	1
2026-07-29	44	14–68	11.5 µg/m³	17h	1
2026-07-28	39	10–63	9.7 µg/m³	14h	1
2026-07-27	39	15–74	10.1 µg/m³	18h	1
2026-07-26	42	11–72	10.8 µg/m³	17h	1
2026-07-25	42	20–63	10.9 µg/m³	9h	1

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