What is the air quality trend in Brás?

Over the past 8 days, Brás had an average AQI of 63 based on station measurements. The worst day was 2026-06-09 with AQI 107.

How is Brás air quality measured?

Air quality in Brás 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 Brás, Brazil

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

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

137

Current AQI
Unhealthy for sensitive groups Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

167h

PM2.5 Station

167h · 3 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-06-09	107	85–130	37.7 µg/m³	48.0	14h	3
2026-06-08	79	25–126	25.9 µg/m³	32.1	24h	3
2026-06-07	100	52–145	34.2 µg/m³	42.1	24h	3
2026-06-06	67	32–165	20.7 µg/m³	24.3	24h	3
2026-06-05	21	8–55	5.0 µg/m³	6.3	24h	3
2026-06-04	37	16–76	9.3 µg/m³	10.5	24h	3
2026-06-03	41	15–74	10.7 µg/m³	11.9	24h	3
2026-06-02	52	37–63	13.2 µg/m³	14.4	9h	3

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