What is the air quality trend in Tremembé?

Over the past 8 days, Tremembé had an average AQI of 57 based on station measurements. The worst day was 2026-07-17 with AQI 73.

How is Tremembé air quality measured?

Air quality in Tremembé 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 Tremembé, Brazil

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

167h

PM2.5 Station

167h · 4 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	39	24–63	9.7 µg/m³	23h	5
2026-07-20	48	18–133	12.9 µg/m³	23h	5
2026-07-19	50	19–126	13.3 µg/m³	24h	5
2026-07-18	61	19–181	20.5 µg/m³	24h	5
2026-07-17	73	18–185	29.6 µg/m³	24h	5
2026-07-16	66	19–161	21.7 µg/m³	24h	5
2026-07-15	65	18–169	20.9 µg/m³	24h	5
2026-07-14	60	60–60	16.3 µg/m³	1h	7

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