What is the air quality trend in Vallenar?

Over the past 15 days, Vallenar had an average AQI of 40 based on station measurements. The worst day was 2026-08-24 with AQI 62.

How is Vallenar air quality measured?

Air quality in Vallenar 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 Vallenar, Chile

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

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

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

139h

PM2.5 Station

139h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-09-05	49	21–67	13.5 µg/m³	5h	1
2026-09-04	44	1–91	12.2 µg/m³	9h	1
2026-09-03	39	19–107	10.9 µg/m³	13h	1
2026-09-02	35	12–60	8.8 µg/m³	11h	1
2026-09-01	51	6–145	15.0 µg/m³	11h	1
2026-08-31	61	13–173	22.2 µg/m³	11h	1
2026-08-30	44	17–177	17.6 µg/m³	9h	1
2026-08-29	32	15–58	7.9 µg/m³	9h	1
2026-08-28	21	9–50	5.1 µg/m³	9h	1
2026-08-27	35	17–59	8.6 µg/m³	9h	1
2026-08-26	26	5–50	6.3 µg/m³	14h	1
2026-08-25	23	9–32	5.6 µg/m³	5h	1
2026-08-24	62	17–144	19.0 µg/m³	11h	1
2026-08-23	53	15–127	15.7 µg/m³	11h	1
2026-08-22	36	30–42	8.6 µg/m³	2h	1

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