What is the air quality trend in Piracaia?

Over the past 21 days, Piracaia had an average AQI of 72 based on station measurements. The worst day was 2026-05-24 with AQI 90.

How is Piracaia air quality measured?

Air quality in Piracaia 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 Piracaia, Brazil

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

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

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

479h

PM2.5 Station

479h · 8 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-30	65	12–186	23.7 µg/m³	15h	7
2026-05-29	55	13–91	15.3 µg/m³	24h	6
2026-05-28	67	38–176	21.5 µg/m³	24h	8
2026-05-27	86	44–311	34.5 µg/m³	24h	7
2026-05-26	80	26–159	26.5 µg/m³	24h	7
2026-05-25	80	35–158	26.3 µg/m³	24h	8
2026-05-24	90	30–245	36.4 µg/m³	24h	9
2026-05-23	75	24–177	25.2 µg/m³	24h	8
2026-05-22	59	25–166	18.5 µg/m³	24h	8
2026-05-21	66	23–161	20.6 µg/m³	24h	7
2026-05-20	79	20–183	28.4 µg/m³	24h	7
2026-05-19	77	27–157	25.0 µg/m³	24h	8
2026-05-18	67	28–115	20.4 µg/m³	24h	8
2026-05-17	63	1–195	23.6 µg/m³	24h	7
2026-05-16	74	12–176	27.5 µg/m³	23h	7
2026-05-15	73	36–139	22.7 µg/m³	24h	7
2026-05-14	73	35–168	23.6 µg/m³	24h	8
2026-05-13	78	32–151	25.2 µg/m³	24h	8
2026-05-12	73	8–121	23.0 µg/m³	24h	9
2026-05-11	64	27–144	18.9 µg/m³	24h	9
2026-05-10	86	25–169	32.3 µg/m³	9h	10

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