What is the air quality trend in Talcahuano?

Over the past 7 days, Talcahuano had an average AQI of 71 based on station measurements. The worst day was 2026-05-26 with AQI 86.

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.

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

168h

PM2.5 Station

168h · 3 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-29	68	7–193	23.5 µg/m³	24h	7
2026-05-28	52	18–131	14.9 µg/m³	24h	10
2026-05-27	76	25–160	24.6 µg/m³	24h	10
2026-05-26	86	14–184	32.5 µg/m³	24h	10
2026-05-25	78	23–155	25.6 µg/m³	24h	11
2026-05-24	67	26–114	20.0 µg/m³	24h	9
2026-05-23	75	28–151	23.5 µg/m³	24h	9

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