Gas and Particulate Pollution in Patras (Greece) during PANACEA 2019 – 2020

Extensive aerosol measurements were conducted in Patras (Greece) within the framework of the PANACEA summer and winter campaigns in Greece. During both periods a high-resolution time-of-flight aerosol mass spectrometer coupled with a variety of other instruments were deployed for measuring the chemical composition and concentration of fine particulate matter. The data are complemented with carbon monoxide, ozone, sulfur dioxide, and nitrogen oxides measurements. Volatile organic compounds concentrations were measured by a proton transfer-reaction mass spectrometer during part of the winter campaign. PM2.5 measurements from a network of fifteen low-cost sensors are also available. The aim of the campaigns was to enhance our knowledge of particulate air pollution and the resulting human exposure in major Greek cities. During the summer, positive matrix factorization showed that 90% of the OA was secondary and quite oxidized, while in winter biomass burning for residential heating was the dominant source of particulate matter.