What is the air quality trend in San Francisco de Mostazal?

Over the past 3 days, San Francisco de Mostazal had an average AQI of 54 based on station measurements. The worst day was 2026-09-05 with AQI 81.

How is San Francisco de Mostazal air quality measured?

Air quality in San Francisco de Mostazal 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 San Francisco de Mostazal, Chile

Name: San Francisco de Mostazal Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near San Francisco de Mostazal, Chile.

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

45h

PM2.5 Station

45h · 17 stations

Temperature GFS model

8pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-09-05	81	64–104	26.5 µg/m³	17h	18
2026-09-04	54	24–82	14.6 µg/m³	24h	18
2026-09-03	29	23–35	7.1 µg/m³	4h	20

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