What is the air quality trend in Caxias do Sul?

Over the past 8 days, Caxias do Sul had an average AQI of 16 based on station measurements. The worst day was 2026-05-26 with AQI 33.

How is Caxias do Sul air quality measured?

Air quality in Caxias do Sul 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 Caxias do Sul, Brazil

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

Historical PM2.5 and AQI trend from monitoring stations near Caxias do Sul, Brazil.

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

166h

PM2.5 Station

166h · 1 station

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	25	18–38	5.9 µg/m³	9.8	12h	1
2026-05-29	14	5–71	3.6 µg/m³	6.9	23h	1
2026-05-28	8	2–18	1.8 µg/m³	4.4	24h	1
2026-05-27	12	4–23	3.0 µg/m³	6.5	23h	1
2026-05-26	33	14–69	8.1 µg/m³	12.0	24h	1
2026-05-25	14	2–36	3.4 µg/m³	5.3	24h	1
2026-05-24	12	3–21	3.0 µg/m³	5.4	24h	1
2026-05-23	12	2–30	2.9 µg/m³	4.5	12h	1

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