What is the air quality trend in Vila Franca de Xira?

Over the past 8 days, Vila Franca de Xira had an average AQI of 33 based on station measurements. The worst day was 2026-08-08 with AQI 54.

How is Vila Franca de Xira air quality measured?

Air quality in Vila Franca de Xira 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 Vila Franca de Xira, Portugal

Name: Vila Franca de Xira Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Vila Franca de Xira, Portugal.

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

166h

PM2.5 Station

166h · 6 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-08-08	54	14–128	18.2 µg/m³	5.7	3h	6
2026-08-07	35	8–157	10.5 µg/m³	8.2	24h	7
2026-08-06	19	13–25	4.6 µg/m³	4.1	24h	7
2026-08-05	27	14–53	6.6 µg/m³	4.0	24h	8
2026-08-04	28	6–71	7.1 µg/m³	5.3	24h	8
2026-08-03	31	8–59	7.5 µg/m³	7.4	24h	7
2026-08-02	38	11–169	11.2 µg/m³	11.6	24h	8
2026-08-01	35	19–51	8.4 µg/m³	13.6	19h	7

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