What is the air quality trend in Talcahuano?

Over the past 21 days, Talcahuano had an average AQI of 64 based on station measurements. The worst day was 2026-05-26 with AQI 92.

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

478h

PM2.5 Station

478h · 11 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-06-09	66	35–90	19.9 µg/m³	6h	11
2026-06-08	53	12–101	15.8 µg/m³	24h	14
2026-06-07	57	11–162	17.9 µg/m³	24h	13
2026-06-06	47	5–175	15.2 µg/m³	24h	11
2026-06-05	46	17–95	12.9 µg/m³	24h	12
2026-06-04	60	19–153	18.4 µg/m³	24h	11
2026-06-03	49	8–124	13.9 µg/m³	24h	12
2026-06-02	59	9–135	17.8 µg/m³	24h	13
2026-06-01	45	9–78	12.3 µg/m³	24h	10
2026-05-31	52	15–125	15.3 µg/m³	24h	11
2026-05-30	66	35–116	19.4 µg/m³	23h	14
2026-05-29	67	21–166	21.4 µg/m³	24h	10
2026-05-28	62	35–113	17.7 µg/m³	24h	14
2026-05-27	79	33–162	26.2 µg/m³	24h	11
2026-05-26	92	23–168	32.6 µg/m³	24h	13
2026-05-25	72	16–162	24.0 µg/m³	24h	12
2026-05-24	82	40–146	26.3 µg/m³	24h	14
2026-05-23	82	26–174	29.1 µg/m³	24h	15
2026-05-22	62	24–118	18.3 µg/m³	24h	13
2026-05-21	62	14–156	20.2 µg/m³	24h	10
2026-05-20	88	16–176	31.8 µg/m³	17h	12

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