What is the air quality trend in South El Monte?

Over the past 15 days, South El Monte had an average AQI of 37 based on station measurements. The worst day was 2026-06-05 with AQI 81.

How is South El Monte air quality measured?

Air quality in South El Monte 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 South El Monte, United States

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

307h

PM2.5 Station

307h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-06-09	33	21–50	8.0 µg/m³	9.4	11h	1
2026-06-08	40	29–55	9.6 µg/m³	10.5	24h	1
2026-06-07	38	21–53	9.1 µg/m³	10.1	24h	1
2026-06-06	56	42–68	14.8 µg/m³	16.6	24h	1
2026-06-05	81	57–99	26.2 µg/m³	28.9	24h	1
2026-06-04	64	38–80	18.4 µg/m³	20.0	24h	1
2026-06-03	56	21–76	16.1 µg/m³	17.5	24h	1
2026-06-02	58	38–72	15.8 µg/m³	17.5	24h	1
2026-06-01	46	29–76	11.8 µg/m³	13.5	21h	1
2026-05-31	38	17–57	9.1 µg/m³	9.7	24h	1
2026-05-30	10	4–38	2.4 µg/m³	2.9	20h	1
2026-05-29	5	4–8	1.2 µg/m³	1.4	12h	1
2026-05-28	6	4–17	1.4 µg/m³	1.6	16h	1
2026-05-27	8	4–17	2.0 µg/m³	2.7	22h	1
2026-05-26	19	13–25	4.5 µg/m³	5.2	13h	1

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