What is the air quality trend in El Segundo?

Over the past 14 days, El Segundo had an average AQI of 28 based on station measurements. The worst day was 2026-10-08 with AQI 41.

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

333h

PM2.5 Station

333h · 226 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-10-20	32	24–45	7.7 µg/m³	4.9	24h	199
2026-10-19	27	21–34	6.5 µg/m³	4.2	24h	228
2026-10-18	24	16–30	5.7 µg/m³	3.7	24h	210
2026-10-17	22	16–26	5.1 µg/m³	3.8	24h	226
2026-10-16	21	15–31	5.2 µg/m³	3.8	24h	216
2026-10-15	24	16–30	5.7 µg/m³	4.2	24h	226
2026-10-14	23	18–25	5.5 µg/m³	3.7	24h	226
2026-10-13	22	19–25	5.3 µg/m³	3.2	24h	226
2026-10-12	22	18–30	5.4 µg/m³	3.6	24h	225
2026-10-11	33	29–37	7.9 µg/m³	7.4	24h	227
2026-10-10	39	25–49	9.4 µg/m³	8.1	24h	202
2026-10-09	38	28–46	9.0 µg/m³	7.6	24h	211
2026-10-08	41	30–49	9.9 µg/m³	6.1	24h	230
2026-10-07	37	17–56	8.9 µg/m³	4.6	21h	219

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