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The Local Air Quality Index - Pakistan

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 - Pakistan

BreezoMeter uses a hybrid index that is based on the AirNow’s NowCast and U.S. AQI

1

We take the average of each pollutant type as described below.

2

We convert average pollutant concentrations to an 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

AQI (US) represents air quality levels according to the following health categories:

Category

AQI

Good air quality

0 to 50

Moderate air quality

51 to 100

Unhealthy air quality for sensitive groups

101 to 150

Unhealthy air quality

151 to 200

Very unhealthy air quality

201 to 300

Hazardous air quality

301 to 500

Pollutant Type

Period

pm2.5

12h avg.

pm10

12h avg.

o3

1h or 8h avg.

so2

1h or 24h avg.

no2

1h avg.

co

8h avg.

Index Pollutant Types

The following chart displays the pollutants that are part of the AQI (US) 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.