What is the air quality trend in Passa Quatro?

Over the past 8 days, Passa Quatro had an average AQI of 53 based on station measurements. The worst day was 2026-07-15 with AQI 76.

How is Passa Quatro air quality measured?

Air quality in Passa Quatro 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 Passa Quatro, Brazil

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

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

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

100h

PM2.5 Station

100h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-22	26	8–45	6.4 µg/m³	2h	1
2026-07-21	53	13–181	19.8 µg/m³	13h	1
2026-07-20	47	23–118	13.4 µg/m³	14h	1
2026-07-19	52	25–114	14.5 µg/m³	14h	1
2026-07-18	49	16–94	13.2 µg/m³	14h	1
2026-07-17	76	28–295	36.2 µg/m³	11h	1
2026-07-16	51	1–161	16.1 µg/m³	16h	1
2026-07-15	76	16–323	35.8 µg/m³	16h	1

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