What is the air quality trend in Piedade?

Over the past 8 days, Piedade had an average AQI of 51 based on station measurements. The worst day was 2026-07-17 with AQI 63.

How is Piedade air quality measured?

Air quality in Piedade 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 Piedade, Brazil

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

Historical PM2.5 and AQI trend from monitoring stations near Piedade, Brazil.

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

134h

PM2.5 Station

134h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-22	58	33–78	16.8 µg/m³	4h	2
2026-07-21	36	8–92	9.1 µg/m³	20h	2
2026-07-20	35	3–156	9.8 µg/m³	22h	2
2026-07-19	56	5–175	18.5 µg/m³	18h	2
2026-07-18	53	18–136	14.7 µg/m³	17h	2
2026-07-17	63	4–163	21.3 µg/m³	19h	2
2026-07-16	60	24–370	26.2 µg/m³	22h	2
2026-07-15	48	16–85	13.4 µg/m³	12h	2

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