What is the air quality trend in Melipilla?

Over the past 8 days, Melipilla had an average AQI of 53 based on station measurements. The worst day was 2026-10-18 with AQI 82.

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

164h

PM2.5 Station

164h · 12 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-22	11	10–12	2.7 µg/m³	2h	11
2026-10-21	44	9–110	12.9 µg/m³	24h	13
2026-10-20	44	14–97	12.7 µg/m³	24h	16
2026-10-19	65	17–108	20.1 µg/m³	24h	16
2026-10-18	82	42–130	26.4 µg/m³	24h	15
2026-10-17	72	35–137	22.4 µg/m³	24h	15
2026-10-16	65	21–98	19.8 µg/m³	24h	16
2026-10-15	45	16–78	12.3 µg/m³	18h	15

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