What is the air quality trend in Santo António dos Olivais?

Over the past 8 days, Santo António dos Olivais had an average AQI of 32 based on station measurements. The worst day was 2026-05-28 with AQI 47.

How is Santo António dos Olivais air quality measured?

Air quality in Santo António dos Olivais 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 Santo António dos Olivais, Portugal

Name: Santo António dos Olivais Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Santo António dos Olivais, Portugal.

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

113h

PM2.5 Station

113h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-05-30	29	29–29	7.0 µg/m³	25.5	4h	1
2026-05-29	30	25–38	7.3 µg/m³	24.5	19h	1
2026-05-28	47	42–53	11.2 µg/m³	34.4	19h	1
2026-05-27	46	33–53	11.0 µg/m³	43.1	18h	1
2026-05-26	31	29–33	7.6 µg/m³	30.3	15h	1
2026-05-25	31	25–38	7.6 µg/m³	30.8	18h	1
2026-05-24	22	21–25	5.4 µg/m³	31.2	19h	1
2026-05-23	21	21–21	5.0 µg/m³	30.0	1h	1

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