What is the air quality trend in Guaianases?

Over the past 8 days, Guaianases had an average AQI of 77 based on station measurements. The worst day was 2026-05-27 with AQI 87.

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
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

168h

PM2.5 Station

168h · 3 stations

Temperature GFS model

27pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-05-30	75	51–166	25.1 µg/m³	15.9	12h	26
2026-05-29	66	46–85	19.4 µg/m³	14.8	24h	27
2026-05-28	64	36–173	19.6 µg/m³	5.2	24h	32
2026-05-27	87	43–162	30.0 µg/m³	25.3	24h	30
2026-05-26	82	55–156	27.0 µg/m³	20.9	24h	30
2026-05-25	85	53–166	28.9 µg/m³	25.5	24h	31
2026-05-24	81	40–132	26.2 µg/m³	29.8	24h	32
2026-05-23	77	49–129	24.4 µg/m³	27.3	12h	35

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