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The Local Air Quality Index - Spain

The Local Air Quality Index is a method used by the government and companies to communicate air quality in an understandable way.

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How we calculate the air quality index - Spain

BreezoMeter uses an index called “ICA (ES)”


We take the average of each pollutant type according to local government definitions.


An official conversion table is used to convert average pollutant concentrations to AQI for each pollutant.


The final AQI is determined by taking the worst AQI among all pollutants. The worst pollutant being the dominant pollutant.

Index Health Categories

ICA (ES) represents air quality levels according to the following health categories:


Good air quality

Reasonably good air quality

Regular air quality

Unfavorable air quality

Very unfavorable air quality

Extremely unfavorable air quality

Pollutant Type



24h avg.


24h avg.


8h avg.


1h avg.


1h avg.

Index Pollutant Types

The following chart displays the pollutants that are part of the ICA (ES) calculation and the timeframe taken to average each pollutant type:

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Air Quality Indexes Around The Globe

Explore the local air quality indexes BreezoMeter uses in various countries.