What is the air quality trend in Melipilla?

Over the past 15 days, Melipilla had an average AQI of 78 based on station measurements. The worst day was 2026-07-26 with AQI 125.

How is Melipilla air quality measured?

Air quality in Melipilla 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 Melipilla, Chile

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

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

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

332h

PM2.5 Station

332h · 21 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-08-08	47	38–59	11.8 µg/m³	3h	21
2026-08-07	84	28–140	27.9 µg/m³	24h	21
2026-08-06	51	13–97	14.2 µg/m³	24h	22
2026-08-05	112	71–152	39.9 µg/m³	24h	24
2026-08-04	84	68–111	27.9 µg/m³	24h	23
2026-08-03	90	53–126	30.4 µg/m³	23h	23
2026-08-02	65	11–135	20.7 µg/m³	24h	20
2026-08-01	120	98–146	43.1 µg/m³	24h	20
2026-07-31	49	13–94	14.2 µg/m³	24h	21
2026-07-30	73	19–116	24.2 µg/m³	24h	24
2026-07-29	84	64–118	27.7 µg/m³	24h	25
2026-07-28	36	23–60	8.9 µg/m³	24h	23
2026-07-27	62	24–124	18.9 µg/m³	24h	22
2026-07-26	125	62–163	47.6 µg/m³	24h	22
2026-07-25	100	71–145	35.1 µg/m³	18h	21

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