What is the air quality trend in Santo Anastácio?

Over the past 3 days, Santo Anastácio had an average AQI of 42 based on station measurements. The worst day was 2026-07-22 with AQI 54.

How is Santo Anastácio air quality measured?

Air quality in Santo Anastácio 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 Santo Anastácio, Brazil

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

Historical PM2.5 and AQI trend from monitoring stations near Santo Anastácio, Brazil.

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

30h

PM2.5 Station

30h · 1 station

Temperature GFS model

8pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-22	54	29–104	17.0 µg/m³	3h	1
2026-07-21	37	5–149	10.7 µg/m³	13h	1
2026-07-20	35	8–77	9.0 µg/m³	14h	1

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