AQMA Details

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The AQMA details for are shown below:

Amendment History

The below table provides information on the amendment history of this AQMA

AQMA Name AQMA Status Pollutants Date
AQMA No.4 A20T Declared Nitrogen dioxide NO2
Particulate Matter PM10		 01/03/2002
AQMA No.4 A20T Amended Nitrogen dioxide NO2 01/09/2006
AQMA No.4 A20T Revoked 21/07/2022

Pollutants Declared

  • 01/03/2002, Nitrogen dioxide NO2 - Annual Mean
  • 01/03/2002, Particulate Matter PM10 - 24-Hour Mean
  • 01/09/2006, Nitrogen dioxide NO2 - Annual Mean

AQMA No.4 A20T (Sevenoaks District Council)

01/03/2002, An area following the A20T throughout the borough extending 40m either side of the motorway centreline.

Source: Mixture of road types

AQMA No.4 A20T (Sevenoaks District Council)

01/09/2006, An area following the A20T throughout the borough extending 40m either side of the motorway centreline.

Source: Mixture of road types

Download the map of this AQMA No.4 A20T (PDF)

AQMA No.4 A20T (Sevenoaks District Council)

21/07/2022, An area following the A20T throughout the borough extending 40m either side of the motorway centreline.

Source: Mixture of road types