What is the air quality trend in Rio Grande da Serra?

Over the past 15 days, Rio Grande da Serra had an average AQI of 72 based on station measurements. The worst day was 2026-06-09 with AQI 93.

How is Rio Grande da Serra air quality measured?

Air quality in Rio Grande da Serra 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 Rio Grande da Serra, Brazil

Name: Rio Grande da Serra Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Rio Grande da Serra, Brazil.

105

Current AQI
Unhealthy for sensitive groups Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

336h

PM2.5 Station

336h · 3 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-06-09	93	66–158	32.7 µg/m³	49.8	13h	19
2026-06-08	81	30–160	26.7 µg/m³	33.5	24h	22
2026-06-07	83	52–156	27.1 µg/m³	42.3	24h	20
2026-06-06	74	52–152	22.7 µg/m³	23.6	24h	23
2026-06-05	71	40–151	21.5 µg/m³	5.8	24h	23
2026-06-04	72	35–107	22.1 µg/m³	10.0	24h	21
2026-06-03	74	35–165	23.8 µg/m³	11.3	24h	22
2026-06-02	64	43–83	18.5 µg/m³	12.3	24h	23
2026-06-01	64	38–87	18.5 µg/m³	35.7	24h	15
2026-05-31	46	23–94	12.0 µg/m³	7.5	24h	13
2026-05-30	65	36–112	18.9 µg/m³	27.6	24h	18
2026-05-29	59	36–87	16.2 µg/m³	14.8	24h	17
2026-05-28	70	42–165	22.8 µg/m³	5.2	24h	17
2026-05-27	85	54–149	27.8 µg/m³	25.3	24h	20
2026-05-26	82	65–106	26.7 µg/m³	15.2	11h	24

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