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

Over the past 7 days, Rio Grande da Serra had an average AQI of 57 based on station measurements. The worst day was 2026-07-16 with AQI 74.

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.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

168h

PM2.5 Station

168h · 28 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-07-21	44	26–75	11.3 µg/m³	9.7	24h	27
2026-07-20	42	26–58	10.2 µg/m³	10.1	24h	26
2026-07-19	48	31–68	12.1 µg/m³	10.0	24h	28
2026-07-18	60	36–151	16.9 µg/m³	8.3	24h	29
2026-07-17	69	42–123	20.8 µg/m³	17.3	24h	26
2026-07-16	74	41–161	23.5 µg/m³	22.0	24h	26
2026-07-15	65	38–137	18.9 µg/m³	15.5	24h	25

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