Francesc Peters attended the 2018 Ocean Sciences Meeting in Portland (USA) from 11-16 February 2018. He chaired the session “Ocean Biogeochemistry and Air-Sea Interactions” together with Bill Landing and Oliver Wurl. His oral contribution was “Impact of anthropogenic and natural aerosols on Mediterranean microbial communities” by Peters, F., Marín, I., Sala, M.M., Marrasé, C.