What is the air quality trend in Talcahuano?

Over the past 8 days, Talcahuano had an average AQI of 61 based on station measurements. The worst day was 2026-05-26 with AQI 83.

How is Talcahuano air quality measured?

Air quality in Talcahuano 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 Talcahuano, Chile

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

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

104

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 · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-30	55	55–55	14.0 µg/m³	1h	1
2026-05-29	61	19–159	18.8 µg/m³	24h	8
2026-05-28	48	17–99	13.7 µg/m³	24h	10
2026-05-27	60	15–131	18.3 µg/m³	24h	9
2026-05-26	83	22–178	30.1 µg/m³	24h	9
2026-05-25	69	26–147	21.8 µg/m³	24h	10
2026-05-24	63	30–129	18.6 µg/m³	24h	10
2026-05-23	55	18–94	15.2 µg/m³	22h	9

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