Welcome to the Local Authority NO2 Diffusion Tube web-based data entry system
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This system is provided as part of the Defra Local Authority Air Quality Support programme, for the use of UK Local Authorities using NO2 diffusion tubes for Local Air Quality Monitoring purposes.

This centralised database provides users with a safe and convenient means of archiving and managing their NO2 diffusion tube data and site details, free of charge, and of making them available to others via the Defra Air Quality Archive.


Log on to the Archive Admin System
 
Username
Password
 
 
 
For 2008 monitoring calendar please click here.

If you work for a Local Authority that does not currently use this system, but would like to start, please contact the Administrator.

If you have forgotten or not received your username and password, please contact the Administrator.




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