The University Institute of Environment of the Universidade da Coruña provides long-term datasets for black carbon and nanoparticle number size distributions, in addition to more recent time-series for PM10, pollutant gases, and the particle fractions PM10-PM4-PM2.5-PM1. All these datasets correspond to a suburban background site in the surroundings (5 km) of the medium-sized city of A Coruña, and close to the city airport and harbour.