What is the air quality trend in Pilar do Sul?

Over the past 21 days, Pilar do Sul had an average AQI of 73 based on station measurements. The worst day was 2026-05-21 with AQI 126.

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
Moderate CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

363h

PM2.5 Station

363h · 1 station

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-06-09	75	25–151	24.1 µg/m³	11h	1
2026-06-08	54	9–168	17.6 µg/m³	17h	2
2026-06-07	74	24–161	24.7 µg/m³	19h	2
2026-06-06	64	8–105	20.3 µg/m³	22h	2
2026-06-05	60	11–154	17.9 µg/m³	18h	2
2026-06-04	44	13–110	12.6 µg/m³	16h	2
2026-06-03	72	9–178	26.5 µg/m³	19h	2
2026-06-02	66	10–170	23.2 µg/m³	20h	2
2026-06-01	58	10–210	24.2 µg/m³	16h	2
2026-05-31	38	9–133	11.1 µg/m³	13h	1
2026-05-30	64	14–164	21.1 µg/m³	17h	1
2026-05-29	55	20–111	16.2 µg/m³	15h	1
2026-05-28	68	10–180	24.1 µg/m³	15h	1
2026-05-27	79	25–196	31.5 µg/m³	21h	1
2026-05-26	84	16–171	30.0 µg/m³	17h	2
2026-05-25	104	39–423	54.1 µg/m³	19h	2
2026-05-24	96	10–345	45.4 µg/m³	20h	1
2026-05-23	93	9–493	49.8 µg/m³	17h	1
2026-05-22	70	14–157	23.4 µg/m³	21h	1
2026-05-21	126	12–500	99.0 µg/m³	21h	1
2026-05-20	107	15–500	73.9 µg/m³	9h	2

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