What is the air quality trend in Guaianases?

Over the past 8 days, Guaianases had an average AQI of 51 based on station measurements. The worst day was 2026-08-02 with AQI 58.

How is Guaianases air quality measured?

Air quality in Guaianases 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 Guaianases, Brazil

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

166h

PM2.5 Station

166h · 31 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	50	41–61	12.3 µg/m³	14.0	6h	35
2026-08-07	44	26–55	10.5 µg/m³	9.1	24h	33
2026-08-06	41	31–74	10.1 µg/m³	13.1	24h	49
2026-08-05	50	35–75	12.6 µg/m³	29.0	24h	47
2026-08-04	55	34–74	14.7 µg/m³	40.0	24h	44
2026-08-03	55	32–104	14.7 µg/m³	30.2	24h	38
2026-08-02	58	40–104	15.8 µg/m³	23.2	24h	43
2026-08-01	57	41–96	15.1 µg/m³	23.8	16h	44

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