What is the air quality trend in Penco?

Over the past 8 days, Penco had an average AQI of 58 based on station measurements. The worst day was 2026-07-16 with AQI 77.

How is Penco air quality measured?

Air quality in Penco 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 Penco, Chile

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

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

103

Current AQI
Unhealthy for sensitive groups Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

167h

PM2.5 Station

167h · 3 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	53	21–114	15.2 µg/m³	22h	7
2026-07-20	47	21–132	12.9 µg/m³	24h	8
2026-07-19	44	26–89	11.2 µg/m³	24h	8
2026-07-18	70	34–175	23.1 µg/m³	24h	8
2026-07-17	52	5–142	14.4 µg/m³	24h	7
2026-07-16	77	37–167	25.4 µg/m³	24h	7
2026-07-15	62	28–167	19.3 µg/m³	24h	7
2026-07-14	59	59–59	16.1 µg/m³	1h	3

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