What is the air quality trend in Franco da Rocha?

Over the past 14 days, Franco da Rocha had an average AQI of 61 based on station measurements. The worst day was 2026-07-09 with AQI 130.

How is Franco da Rocha air quality measured?

Air quality in Franco da Rocha 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 Franco da Rocha, Brazil

Name: Franco da Rocha Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Franco da Rocha, Brazil.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

327h

PM2.5 Station

327h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-07-21	39	9–84	10.7 µg/m³	12.8	22h	1
2026-07-20	44	13–119	12.1 µg/m³	14.5	24h	1
2026-07-19	46	7–108	12.9 µg/m³	15.0	24h	1
2026-07-18	37	7–118	9.7 µg/m³	11.7	24h	1
2026-07-17	62	17–114	19.1 µg/m³	23.4	24h	1
2026-07-16	74	23–106	23.8 µg/m³	29.4	24h	1
2026-07-15	62	23–101	18.4 µg/m³	21.5	24h	1
2026-07-14	43	13–77	10.7 µg/m³	12.1	24h	1
2026-07-13	19	7–44	4.5 µg/m³	5.7	24h	1
2026-07-12	32	8–97	8.3 µg/m³	9.4	24h	1
2026-07-11	83	22–142	27.7 µg/m³	34.3	24h	1
2026-07-10	99	39–154	34.5 µg/m³	43.6	24h	1
2026-07-09	130	94–162	48.8 µg/m³	64.8	22h	1
2026-07-08	93	54–135	31.2 µg/m³	38.9	19h	1

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