The Helsinki metropolitan Air Quality Testbed (HAQT) project addressed the whole chain of air quality measurements, modelling, diagnostics, forecasting and services facilitating societal health and in general improving quality of life. The overarching objectives of the HAQT project were:

  • to verify the quality of networks built from affordable air quality instruments, and the usefulness of the data for air quality monitoring or forecasting. Additionally, to quantify how much added value such instruments will bring as part of networks composed of reference-level AQ instruments.
  • to quantify the performance of commercial, affordable AQ devices as stand-alone AQ instruments or as members in AQ instrument networks.
  • to enable air quality services, export potential of the services and the AQ instruments involved, and establishment of the brand of the Helsinki metropolitan area as a forerunner in the fields of air quality, healthy living, digital services and smart cities. 

FMI-ENFUSER: Fused hourly concentration of NO2 [µgm-3] at HMA. Wind vectors are illustrated with red arrows.