Download Data
» Download Data - Go though a series of menus to request measured data on screen or by automatic e-mail.
» Download 2023 Calendar - Download the 2021 Nitrogen Dioxide Diffusion Tube Calendar of suggested exposure periods
» Download 2022 Calendar - Download the 2021 Nitrogen Dioxide Diffusion Tube Calendar of suggested exposure periods
Submit Data
» Submit Data - Submit non-automatic monitoring data to the Air Quality Database for Wales (user name and password required).
Search for the NO2 diffusion data submission status.