What is the air quality trend in Rio Claro?

Over the past 15 days, Rio Claro had an average AQI of 70 based on station measurements. The worst day was 2026-05-20 with AQI 90.

How is Rio Claro air quality measured?

Air quality in Rio Claro 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 Claro, Brazil

Name: Rio Claro 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 Claro, Brazil.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

329h

PM2.5 Station

329h · 6 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-30	63	25–136	18.6 µg/m³	11h	6
2026-05-29	67	25–159	21.6 µg/m³	24h	4
2026-05-28	62	28–126	18.0 µg/m³	23h	5
2026-05-27	73	34–156	23.3 µg/m³	24h	5
2026-05-26	79	3–211	29.0 µg/m³	24h	5
2026-05-25	74	5–164	25.2 µg/m³	24h	5
2026-05-24	86	25–152	28.8 µg/m³	23h	5
2026-05-23	76	20–153	24.2 µg/m³	24h	6
2026-05-22	60	12–96	17.8 µg/m³	24h	5
2026-05-21	66	19–169	22.5 µg/m³	24h	5
2026-05-20	90	10–248	43.8 µg/m³	24h	6
2026-05-19	87	20–254	38.5 µg/m³	24h	5
2026-05-18	69	21–168	22.6 µg/m³	24h	5
2026-05-17	53	10–139	15.8 µg/m³	24h	5
2026-05-16	59	32–95	17.1 µg/m³	8h	5

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