What is the air quality trend in Passa Quatro?

Over the past 15 days, Passa Quatro had an average AQI of 44 based on station measurements. The worst day was 2026-07-10 with AQI 62.

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

193h

PM2.5 Station

193h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-22	7	7–7	1.7 µg/m³	1h	1
2026-07-21	36	3–131	10.1 µg/m³	11h	1
2026-07-20	36	3–118	9.8 µg/m³	14h	1
2026-07-19	46	25–72	12.2 µg/m³	14h	1
2026-07-18	44	27–70	11.2 µg/m³	18h	1
2026-07-17	52	25–134	14.8 µg/m³	15h	1
2026-07-16	56	10–139	16.2 µg/m³	16h	1
2026-07-15	56	16–158	17.6 µg/m³	14h	1
2026-07-14	33	7–118	9.3 µg/m³	16h	1
2026-07-13	44	1–127	12.5 µg/m³	19h	1
2026-07-12	59	17–221	26.3 µg/m³	11h	1
2026-07-11	54	18–174	19.0 µg/m³	13h	1
2026-07-10	62	37–160	20.4 µg/m³	7h	1
2026-07-09	40	19–70	10.2 µg/m³	13h	1
2026-07-08	37	7–96	10.4 µg/m³	11h	1

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