What is the air quality trend in Ñuñoa?

Over the past 8 days, Ñuñoa had an average AQI of 42 based on station measurements. The worst day was 2026-10-17 with AQI 68.

How is Ñuñoa air quality measured?

Air quality in Ñuñoa 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 Ñuñoa, Chile

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

166h

PM2.5 Station

166h · 63 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-10-22	12	11–13	2.9 µg/m³	0.1	4h	64
2026-10-21	19	6–54	4.7 µg/m³	0.1	24h	72
2026-10-20	27	9–44	6.5 µg/m³	0.1	24h	83
2026-10-19	54	20–84	15.0 µg/m³	0.1	24h	85
2026-10-18	60	45–80	16.8 µg/m³	0.1	24h	86
2026-10-17	68	43–104	20.4 µg/m³	0.3	24h	80
2026-10-16	56	24–94	16.5 µg/m³	0.2	24h	89
2026-10-15	43	17–66	11.2 µg/m³	0.1	18h	82

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