What is the air quality trend in Melipilla?

Over the past 15 days, Melipilla had an average AQI of 146 based on station measurements. The worst day was 2026-05-30 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.

102

Current AQI
Unhealthy for sensitive groups Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

337h

PM2.5 Station

337h · 18 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-30	168	168–168	88.1 µg/m³	1h	18
2026-05-29	154	133–163	65.5 µg/m³	24h	21
2026-05-28	131	81–158	49.3 µg/m³	24h	22
2026-05-27	136	86–179	53.9 µg/m³	24h	21
2026-05-26	127	57–164	50.3 µg/m³	24h	21
2026-05-25	160	93–222	92.5 µg/m³	24h	21
2026-05-24	167	159–182	86.4 µg/m³	24h	21
2026-05-23	156	137–165	65.3 µg/m³	24h	22
2026-05-22	150	17–174	70.1 µg/m³	24h	21
2026-05-21	153	130–163	62.1 µg/m³	24h	22
2026-05-20	157	130–171	68.9 µg/m³	24h	22
2026-05-19	131	104–156	47.9 µg/m³	24h	22
2026-05-18	118	66–158	43.3 µg/m³	24h	21
2026-05-17	143	88–181	64.6 µg/m³	24h	20
2026-05-16	141	104–170	57.3 µg/m³	24h	21

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