What is the air quality trend in Jacareí?

Over the past 8 days, Jacareí had an average AQI of 78 based on station measurements. The worst day was 2026-05-25 with AQI 98.

How is Jacareí air quality measured?

Air quality in Jacareí 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 Jacareí, Brazil

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

168h

PM2.5 Station

168h · 5 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-30	60	30–169	19.0 µg/m³	19h	6
2026-05-29	58	17–117	16.5 µg/m³	24h	5
2026-05-28	60	23–110	17.5 µg/m³	24h	6
2026-05-27	79	26–177	27.4 µg/m³	24h	6
2026-05-26	93	29–183	33.8 µg/m³	24h	6
2026-05-25	98	12–254	41.3 µg/m³	24h	6
2026-05-24	92	55–158	31.6 µg/m³	24h	7
2026-05-23	88	38–196	42.8 µg/m³	5h	7

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