What is the air quality trend in Riacho Fundo II?

Over the past 15 days, Riacho Fundo II had an average AQI of 55 based on station measurements. The worst day was 2026-09-02 with AQI 84.

How is Riacho Fundo II air quality measured?

Air quality in Riacho Fundo II 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 Riacho Fundo II, Brazil

Name: Riacho Fundo II Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Riacho Fundo II, Brazil.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

334h

PM2.5 Station

334h · 3 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-09-05	50	34–66	12.6 µg/m³	13.2	21h	3
2026-09-04	46	15–87	12.7 µg/m³	15.1	24h	2
2026-09-03	80	57–127	25.5 µg/m³	27.8	24h	3
2026-09-02	84	61–106	27.5 µg/m³	29.6	24h	3
2026-09-01	47	16–104	13.2 µg/m³	14.6	23h	3
2026-08-31	46	30–64	11.4 µg/m³	12.0	24h	3
2026-08-30	46	25–71	11.6 µg/m³	13.0	24h	3
2026-08-29	70	44–85	21.4 µg/m³	22.4	24h	3
2026-08-28	49	11–88	12.9 µg/m³	14.4	24h	3
2026-08-27	55	38–71	14.4 µg/m³	15.0	24h	3
2026-08-26	50	23–89	13.3 µg/m³	13.9	24h	3
2026-08-25	36	23–61	8.9 µg/m³	9.5	24h	3
2026-08-24	51	29–78	13.3 µg/m³	13.6	24h	2
2026-08-23	46	13–133	12.8 µg/m³	13.7	24h	2
2026-08-22	80	74–86	25.9 µg/m³	26.4	2h	2

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