What is the air quality trend in Arica?

Over the past 15 days, Arica had an average AQI of 55 based on station measurements. The worst day was 2026-07-12 with AQI 85.

How is Arica air quality measured?

Air quality in Arica 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 Arica, Chile

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

171h

PM2.5 Station

171h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-22	51	28–92	14.3 µg/m³	5h	1
2026-07-21	30	5–63	7.6 µg/m³	11h	1
2026-07-20	37	15–82	9.6 µg/m³	12h	1
2026-07-19	49	20–88	13.6 µg/m³	12h	1
2026-07-18	66	13–155	21.0 µg/m³	14h	1
2026-07-17	49	10–122	13.8 µg/m³	14h	1
2026-07-16	44	5–85	11.6 µg/m³	12h	1
2026-07-15	48	12–74	12.2 µg/m³	8h	1
2026-07-14	70	14–166	24.7 µg/m³	12h	2
2026-07-13	58	15–172	19.8 µg/m³	14h	1
2026-07-12	85	13–294	39.3 µg/m³	13h	1
2026-07-11	77	20–286	38.0 µg/m³	13h	1
2026-07-10	65	5–133	19.8 µg/m³	10h	1
2026-07-09	40	12–89	10.7 µg/m³	14h	1
2026-07-08	61	12–134	19.7 µg/m³	7h	1

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