What is the air quality trend in Pilar do Sul?

Over the past 14 days, Pilar do Sul had an average AQI of 22 based on station measurements. The worst day was 2026-10-16 with AQI 40.

How is Pilar do Sul air quality measured?

Air quality in Pilar 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 Pilar do Sul, Brazil

Name: Pilar 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 Pilar do Sul, Brazil.

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

95h

PM2.5 Station

95h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-22	17	17–17	4.1 µg/m³	1h	1
2026-10-21	31	16–61	7.8 µg/m³	8h	1
2026-10-20	24	8–38	5.9 µg/m³	5h	1
2026-10-19	18	2–30	4.4 µg/m³	10h	1
2026-10-18	17	5–27	4.0 µg/m³	6h	1
2026-10-17	26	9–62	6.7 µg/m³	7h	1
2026-10-16	40	10–73	11.0 µg/m³	7h	1
2026-10-15	18	10–54	4.4 µg/m³	10h	1
2026-10-14	18	11–25	4.2 µg/m³	7h	1
2026-10-13	13	7–26	3.2 µg/m³	7h	1
2026-10-12	23	3–55	5.7 µg/m³	5h	1
2026-10-11	22	5–46	5.2 µg/m³	8h	1
2026-10-10	20	12–38	4.8 µg/m³	6h	1
2026-10-09	24	5–57	5.9 µg/m³	8h	1

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