What is the air quality trend in Santo Anastácio?

Over the past 8 days, Santo Anastácio had an average AQI of 52 based on station measurements. The worst day was 2026-05-27 with AQI 90.

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

115h

PM2.5 Station

115h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-30	44	10–103	13.2 µg/m³	8h	1
2026-05-29	37	11–109	9.8 µg/m³	16h	1
2026-05-28	58	17–121	17.6 µg/m³	14h	2
2026-05-27	90	34–169	32.6 µg/m³	12h	1
2026-05-26	58	9–128	17.5 µg/m³	22h	2
2026-05-25	46	6–179	16.8 µg/m³	15h	1
2026-05-24	39	2–117	10.8 µg/m³	18h	1
2026-05-23	49	13–144	14.7 µg/m³	10h	1

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