MONICOAST, developed in the framework of the Horizon 2020 Jerico-Next Transnational Access (TNA) Call, is a collaborative project between the University of Cagliari (UNICA, Italy) and AZTI (Spain), hosted by the Hellenic Centre for Marine Research (HCMR, Greece). In the framework of the project, SSP and LDPE water passive samplers and PUF air passive samplers were deployed, in 2018-2019, at two buoys (Heraklion Coastal Buoy, HCB; Saronikos Buoy, SB), located in the Mediterranean Sea (Greece), for the measurement of organic compounds.