What is the air quality trend in Arujá?

Over the past 8 days, Arujá had an average AQI of 81 based on station measurements. The worst day was 2026-05-25 with AQI 101.

How is Arujá air quality measured?

Air quality in Arujá 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 Arujá, Brazil

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

169h

PM2.5 Station

169h · 3 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-05-30	67	39–102	20.1 µg/m³	27.3	21h	30
2026-05-29	66	31–91	19.5 µg/m³	14.8	24h	28
2026-05-28	63	29–125	18.4 µg/m³	5.2	24h	31
2026-05-27	86	60–145	28.6 µg/m³	25.3	24h	33
2026-05-26	95	53–152	32.2 µg/m³	20.9	24h	33
2026-05-25	101	42–161	35.8 µg/m³	25.5	24h	35
2026-05-24	88	64–154	29.3 µg/m³	29.8	24h	34
2026-05-23	83	65–93	27.3 µg/m³	32.9	4h	33

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