What is the air quality trend in Talcahuano?

Over the past 15 days, Talcahuano had an average AQI of 56 based on station measurements. The worst day was 2026-07-12 with AQI 75.

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

335h

PM2.5 Station

335h · 6 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-22	54	54–55	13.6 µg/m³	2h	9
2026-07-21	47	20–129	13.1 µg/m³	24h	8
2026-07-20	49	18–212	17.1 µg/m³	24h	7
2026-07-19	49	25–86	12.6 µg/m³	24h	8
2026-07-18	53	31–153	14.2 µg/m³	24h	8
2026-07-17	57	31–157	16.7 µg/m³	24h	7
2026-07-16	65	17–177	21.1 µg/m³	24h	7
2026-07-15	63	32–143	18.5 µg/m³	24h	7
2026-07-14	55	18–123	15.7 µg/m³	24h	6
2026-07-13	45	22–193	14.7 µg/m³	24h	8
2026-07-12	75	18–276	33.7 µg/m³	24h	6
2026-07-11	74	28–216	27.1 µg/m³	24h	7
2026-07-10	57	28–147	16.4 µg/m³	24h	6
2026-07-09	49	26–101	13.2 µg/m³	24h	6
2026-07-08	51	19–111	14.5 µg/m³	21h	6

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