What is the air quality trend in Santana de Parnaíba?

Over the past 15 days, Santana de Parnaíba had an average AQI of 46 based on station measurements. The worst day was 2026-05-24 with AQI 78.

How is Santana de Parnaíba air quality measured?

Air quality in Santana de Parnaíba 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 Santana de Parnaíba, Brazil

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

Historical PM2.5 and AQI trend from monitoring stations near Santana de Parnaíba, 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
2026-05-30	54	31–82	15.0 µg/m³	17.4	13h	3
2026-05-29	48	10–165	14.2 µg/m³	15.4	24h	3
2026-05-28	18	4–56	4.4 µg/m³	5.1	24h	3
2026-05-27	66	16–152	21.3 µg/m³	25.4	24h	3
2026-05-26	62	25–80	18.4 µg/m³	21.1	24h	3
2026-05-25	62	1–102	20.6 µg/m³	25.5	24h	3
2026-05-24	78	38–114	24.9 µg/m³	30.2	24h	3
2026-05-23	67	21–95	20.2 µg/m³	23.8	24h	3
2026-05-22	47	9–68	12.2 µg/m³	13.6	23h	2
2026-05-21	30	12–56	7.2 µg/m³	8.2	24h	3
2026-05-20	18	7–63	4.5 µg/m³	5.1	24h	3
2026-05-19	9	1–31	2.1 µg/m³	2.5	24h	2
2026-05-18	36	6–71	9.4 µg/m³	10.5	24h	3
2026-05-17	58	10–132	18.4 µg/m³	22.2	24h	3
2026-05-16	44	18–89	12.4 µg/m³	14.3	10h	3

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