What is the air quality trend in Los Ángeles?

Over the past 15 days, Los Ángeles had an average AQI of 53 based on station measurements. The worst day was 2026-07-17 with AQI 79.

How is Los Ángeles air quality measured?

Air quality in Los Ángeles 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 Los Ángeles, Chile

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

Historical PM2.5 and AQI trend from monitoring stations near Los Ángeles, Chile.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

316h

PM2.5 Station

316h · 4 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-22	60	46–79	16.7 µg/m³	3h	4
2026-07-21	48	14–128	13.3 µg/m³	23h	5
2026-07-20	50	24–64	12.6 µg/m³	22h	5
2026-07-19	44	17–85	11.5 µg/m³	24h	4
2026-07-18	50	25–119	13.4 µg/m³	24h	4
2026-07-17	79	24–306	36.2 µg/m³	23h	4
2026-07-16	60	21–197	20.7 µg/m³	24h	4
2026-07-15	47	12–93	13.1 µg/m³	23h	2
2026-07-14	48	17–118	12.9 µg/m³	21h	2
2026-07-13	37	10–100	10.0 µg/m³	23h	2
2026-07-12	40	6–156	11.7 µg/m³	24h	2
2026-07-11	77	13–496	41.0 µg/m³	22h	2
2026-07-10	50	20–132	13.6 µg/m³	18h	2
2026-07-09	64	7–178	21.3 µg/m³	23h	2
2026-07-08	44	15–146	11.8 µg/m³	19h	4

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