What is the air quality trend in El Segundo?

Over the past 8 days, El Segundo had an average AQI of 24 based on station measurements. The worst day was 2026-10-20 with AQI 32.

How is El Segundo air quality measured?

Air quality in El Segundo 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 El Segundo, United States

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

165h

PM2.5 Station

165h · 222 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-10-21	24	23–25	5.8 µg/m³	1.7	3h	224
2026-10-20	32	18–45	7.6 µg/m³	5.1	24h	199
2026-10-19	27	21–33	6.5 µg/m³	4.2	24h	227
2026-10-18	24	12–30	5.7 µg/m³	3.7	24h	208
2026-10-17	21	16–26	5.1 µg/m³	3.8	24h	225
2026-10-16	21	15–31	5.2 µg/m³	3.8	24h	215
2026-10-15	24	16–30	5.7 µg/m³	4.2	24h	225
2026-10-14	23	18–25	5.4 µg/m³	3.3	18h	225

Back to El Segundo Air Quality