What is the air quality trend in Guareí?

Over the past 15 days, Guareí had an average AQI of 61 based on station measurements. The worst day was 2026-05-30 with AQI 139.

How is Guareí air quality measured?

Air quality in Guareí 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 Guareí, Brazil

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

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

Current AQI
Moderate CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

235h

PM2.5 Station

235h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-06-09	62	6–161	20.7 µg/m³	14h	1
2026-06-08	54	7–133	16.4 µg/m³	19h	2
2026-06-07	45	5–162	13.5 µg/m³	19h	2
2026-06-06	61	7–155	19.5 µg/m³	18h	2
2026-06-05	46	19–170	14.4 µg/m³	19h	2
2026-06-04	56	8–170	20.5 µg/m³	18h	1
2026-06-03	41	6–87	11.2 µg/m³	18h	1
2026-06-02	43	3–141	12.3 µg/m³	20h	1
2026-06-01	32	11–86	8.5 µg/m³	21h	1
2026-05-31	39	9–107	11.4 µg/m³	12h	1
2026-05-30	139	37–500	97.4 µg/m³	11h	2
2026-05-29	68	4–151	22.3 µg/m³	15h	2
2026-05-28	65	10–242	28.2 µg/m³	13h	1
2026-05-27	81	20–162	28.0 µg/m³	13h	1
2026-05-26	93	23–187	43.3 µg/m³	5h	2

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