What is the air quality trend in Santa Teresa?

Over the past 8 days, Santa Teresa had an average AQI of 49 based on station measurements. The worst day was 2026-07-15 with AQI 72.

How is Santa Teresa air quality measured?

Air quality in Santa Teresa 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 Santa Teresa, Brazil

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

Historical PM2.5 and AQI trend from monitoring stations near Santa Teresa, Brazil.

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

165h

PM2.5 Station

165h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-22	30	16–43	7.1 µg/m³	3h	3
2026-07-21	44	18–131	12.0 µg/m³	24h	4
2026-07-20	42	19–140	11.2 µg/m³	23h	4
2026-07-19	52	23–120	14.7 µg/m³	23h	5
2026-07-18	48	13–94	13.0 µg/m³	24h	5
2026-07-17	56	25–123	15.6 µg/m³	24h	4
2026-07-16	51	8–160	15.3 µg/m³	24h	4
2026-07-15	72	12–170	26.3 µg/m³	20h	4

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