What is the air quality trend in Northridge?

Over the past 21 days, Northridge had an average AQI of 43 based on station measurements. The worst day was 2026-06-05 with AQI 82.

How is Northridge air quality measured?

Air quality in Northridge 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 Northridge, United States

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

466h

PM2.5 Station

466h · 1 station

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-06-09	36	25–55	8.6 µg/m³	8h	1
2026-06-08	46	21–66	11.5 µg/m³	24h	1
2026-06-07	44	29–68	11.0 µg/m³	24h	1
2026-06-06	66	38–122	19.5 µg/m³	24h	1
2026-06-05	82	50–142	26.5 µg/m³	24h	1
2026-06-04	58	38–78	15.6 µg/m³	24h	1
2026-06-03	60	25–144	17.5 µg/m³	24h	1
2026-06-02	57	25–82	15.8 µg/m³	24h	1
2026-06-01	45	17–80	12.0 µg/m³	21h	1
2026-05-31	31	17–57	7.5 µg/m³	24h	1
2026-05-30	19	12–42	4.6 µg/m³	24h	1
2026-05-29	18	12–33	4.3 µg/m³	24h	1
2026-05-28	21	12–38	4.9 µg/m³	16h	1
2026-05-27	25	12–38	6.0 µg/m³	24h	1
2026-05-26	27	17–53	6.5 µg/m³	24h	1
2026-05-25	32	17–59	7.8 µg/m³	24h	1
2026-05-24	50	29–72	13.4 µg/m³	24h	1
2026-05-23	57	38–95	15.7 µg/m³	24h	1
2026-05-22	58	21–102	17.5 µg/m³	22h	1
2026-05-21	36	21–72	8.9 µg/m³	24h	1
2026-05-20	54	17–119	15.9 µg/m³	15h	1

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