Measurement campaigns enabling the determination of atmospheric aerosol properties using in situ measurements (aethalometer, nephelometer, ultrafine and fine particle distribution spectrometers) and remote sensing techniques (high-power aerosol lidar, photometers) allow for the characterization of aerosol properties. These measurements will be supplemented with data on the concentrations of gaseous pollutants, such as NOx (NO, NO2), ozone, suspended particulate matter (PM10, PM2.5), and aerosol chemical composition analysis based on gravimetric measurements.

At the WOPAS platform, comprehensive meteorological measurements are conducted, including the radiation balance in the longwave and shortwave ranges, precipitation intensity and type using an optical disdrometer, wind speed and direction, and temperature gradient measurements up to 14 m above ground level on a meteorological tower. Additionally, the structure of the lower part of the boundary layer is studied using SODAR.

Furthermore, the WOPAS team has extensive experience in modeling atmospheric processes using models such as WRF, WRF-Chem, EMEP, u_EMEP, and ADMS. Methods for applying machine learning in air quality modeling are also being developed.

The campaigns provide data for urban air quality assessments, enabling evidence-based decisions for e.g. health impact assessment, air quality management, and deeper insight into processes favoring haze events.