What is the air quality trend in Rio Pequeno?

Over the past 8 days, Rio Pequeno had an average AQI of 80 based on station measurements. The worst day was 2026-08-04 with AQI 115.

How is Rio Pequeno air quality measured?

Air quality in Rio Pequeno 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 Rio Pequeno, Brazil

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

166h

PM2.5 Station

166h · 3 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-08-08	64	56–73	18.3 µg/m³	18.8	7h	3
2026-08-07	42	18–98	11.2 µg/m³	12.1	24h	3
2026-08-06	52	8–119	15.9 µg/m³	17.7	24h	3
2026-08-05	99	36–156	34.4 µg/m³	40.3	24h	3
2026-08-04	115	36–177	49.2 µg/m³	55.1	24h	3
2026-08-03	100	26–152	34.9 µg/m³	41.1	23h	3
2026-08-02	85	44–143	28.1 µg/m³	30.6	24h	3
2026-08-01	85	42–128	27.9 µg/m³	31.2	16h	3

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