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The Local Air Quality Index - Gibraltar

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 - Gibraltar

BreezoMeter uses an index called “AQHI (GI)”

1

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

2

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

3

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

Index Health Categories

AQHI (GI) represents air quality levels according to the following health categories:

Category

AQI

Low air pollution

1 to 3

Moderate air pollution

4 to 6

High air pollution

7 to 9

Very high air pollution

10

Pollutant Type

Period

pm10

24h avg.

o3

8h avg.

so2

0.25h avg.

no2

1h avg.

co

8h avg.

Index Pollutant Types

The following chart displays the pollutants that are part of the AQHI (GI) 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.