What is the air quality trend in Melipilla?

Over the past 3 days, Melipilla had an average AQI of 150 based on station measurements. The worst day was 2026-05-30 with AQI 169.

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.

159

Current AQI
Unhealthy Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

49h

PM2.5 Station

49h · 18 stations

Temperature GFS model

8pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-30	169	168–170	90.2 µg/m³	2h	18
2026-05-29	153	133–164	63.3 µg/m³	24h	22
2026-05-28	128	81–156	47.9 µg/m³	23h	22

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