Daily air-quality measurements for January 2025. The dataset groups daily averages by monitoring station and pollutant during January 2025.
This page provides an editorial reading of the public source and does not treat codes, identifiers or coordinates as indicators.
What the source contains
The dataset groups daily averages by monitoring station and pollutant during January 2025. The published total refers to rows or features in the dataset, using the unit stated above. No ranking is created from numeric codes.
How to use the data
Each row represents a date and station, not a pollution episode. Comparisons of NO₂, ozone, PM10 or PM2.5 must retain the correct unit, account for missing values and use the official threshold for each pollutant.
Before comparing places or dates, check that the field, unit and period are equivalent. Where a column is an administrative identifier, it is used only to locate the record.
Limitations
A single month does not describe an annual trend. Monitoring stations represent different settings, so direct comparisons without local context can be misleading.
València Informada provides orientation and does not replace consultation of the competent register or public service.