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 59 based on station measurements. The worst day was 2026-07-16 with AQI 76.

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
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

336h

PM2.5 Station

336h · 28 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-07-22	64	60–68	18.1 µg/m³	10.7	2h	24
2026-07-21	46	26–99	12.2 µg/m³	9.7	24h	23
2026-07-20	42	25–64	10.5 µg/m³	10.1	24h	24
2026-07-19	47	30–76	11.9 µg/m³	10.0	24h	25
2026-07-18	56	34–121	15.4 µg/m³	8.3	24h	26
2026-07-17	67	42–94	20.0 µg/m³	17.3	24h	22
2026-07-16	76	44–162	24.9 µg/m³	22.0	24h	24
2026-07-15	68	32–155	20.4 µg/m³	15.5	24h	24
2026-07-14	56	21–98	16.0 µg/m³	7.6	24h	17
2026-07-13	57	26–98	16.3 µg/m³	4.2	24h	23
2026-07-12	75	23–236	28.4 µg/m³	7.2	24h	20
2026-07-11	66	23–160	20.5 µg/m³	26.3	24h	21
2026-07-10	57	38–81	15.6 µg/m³	37.4	24h	19
2026-07-09	61	44–82	17.1 µg/m³	49.7	24h	19
2026-07-08	55	7–98	15.0 µg/m³	29.3	22h	18

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