This Web-Based Data Entry System has been provided by Ricardo Energy & Environment for collection of NO2 diffusion tube data from the following:
A separate diffusion tube data entry system is provided as part of the Defra Local Authority Air Quality Support programme, for the use of UK Local Authorities in England.
For the Instruction Manual for Web-Based Data Entry please click here.
For 2023 monitoring calendar please click here.
For 2022 monitoring calendar please click here.
If you have forgotten or not received your username and password, please contact the Administrator.