What is the air quality trend in Melipilla?

Over the past 8 days, Melipilla had an average AQI of 141 based on station measurements. The worst day was 2026-05-24 with AQI 168.

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
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

169h

PM2.5 Station

169h · 18 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-29	155	133–164	65.9 µg/m³	24h	21
2026-05-28	132	88–158	50.4 µg/m³	24h	22
2026-05-27	134	88–177	52.6 µg/m³	24h	21
2026-05-26	127	57–164	50.9 µg/m³	24h	21
2026-05-25	162	90–212	95.2 µg/m³	24h	20
2026-05-24	168	158–182	87.8 µg/m³	24h	21
2026-05-23	156	138–165	65.4 µg/m³	24h	22
2026-05-22	101	101–101	35.7 µg/m³	1h	3

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