971f291f-8ea4-4c34-a15d-a25b757b0f7c Hellenic Centre for Marine Research (HCMR) 46,7 km Athens Sounio ave. Anavyssos Attiki 19013 Greece president_secretary@hcmr.gr https://www.hcmr.gr/ web site 2026-04-02T00:00:00 ISO 19115:2003/19139 1.0 WGS 1984 Saronikos Gulf sediment data (1999-2018) 2020-02-28 2021-03-29 2024-03-18 971f291f-8ea4-4c34-a15d-a25b757b0f7c DOI:https://doi.org/10.1016/j.dib.2020.105330 A.P. Karageorgis, F. Botsou, H. Kaberi, S. Iliakis, Dataset on the major and trace elements contents and contamination in the sediments of Saronikos Gulf and Elefsis Bay, Greece, Data in Brief, https://doi.org/10.1016/j.dib.2020.105330. Coastal marine sediments receive intensive stress from urbanization and industrialization, which is manifested by increased contents of heavy metals and organic pollutants. Saronikos Gulf and the small embayment of Elefsis, stretch along the coast of the greater Athens and Pireaus port, the most urbanized and industrialized areas in Greece. Here we present the data of a 20-years geochemical record on grain-size, organic carbon, and major and trace elements contents of the Saronikos Gulf sediments. A total of 216 sediment samples were collected within the period of 1999 to 2018 from the four sub-sectors of the gulf, namely, the Elefsis Bay, the Inner, Outer, and Western (Megara and Epidavros basin) Saronikos Gulf. Additionally, at least one core was obtained from each sub-sector. Sediments deposited at pre-industrial periods were recognized by 14C and 210Pb datings, and served for establishing regionalized, background levels of metals. Factor analysis was conducted to reveal the inter-parametric relationships, thus their common sources, as well as transport and deposition pathways. Then, Enrichment Factors and the multi-elemental Modified Pollution Index (MPI) were calculated to assess the current environmental status of the sediments. Data of sampling sites with at least a five-year record, were assessed for temporal trends, to explore whether sustained, increasing or decreasing trends of the MPI are observed. The dataset and analyses presented here support the research article entitled Geochemistry of major and trace elements in surface sediments of the Saronikos Gulf (Greece): assessment of contamination between 1999 and 2018 by Karageorgis A.P., Botsou F., Kaberi H., and Iliakis S., https://doi.org/10.1016/j.scitotenv.2020.137046 Hellenic Centre for Marine Research, Institute of Oceanography 46.7 km Athinon-Souniou Av. P.O.Box 712 Anavyssos 19013 Greece iosecretariat@hcmr.gr https://www.hcmr.gr/ web site Hellenic Centre for Marine Research, Hellenic National Oceanographic Data Centre 46.7 km Athinon-Souniou Av. P.O.Box 712 Anavissos 19013 Greece data@hnodc.hcmr.gr web site Oceanographic geographical features GEMET - INSPIRE themes, version 1.0 2008-06-01 geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme Aegean Sea SeaVoX salt and fresh water body gazetteer 2024-01-15 SeaVoX salt and fresh water body gazetteer Metal and metalloid concentrations Pollution SeaDataNet Agreed Parameter Groups 2023-07-04 SeaDataNet Agreed Parameter Groups unconsolidated sediment corers SeaDataNet device categories 2024-01-16 SeaDataNet device categories Unspecified box corer Unspecified gravity corer SeaVoX Device Catalogue 2024-01-29 SeaVoX Device Catalogue Carbon concentrations in sediment Sediment grain size parameters Inorganic chemical composition of sediment or rocks SeaDataNet Parameter Discovery Vocabulary 2023-12-12 SeaDataNet Parameter Discovery Vocabulary Advisory Councils boundaries EMODnet human activity categories 2018-11-02 EMODnet human activity categories CRUISE SUMMARY REPORT INVENTORY (CSR) 2023-10-02 research vessel SeaVoX Platform Categories 2024-01-16 SeaVoX Platform Categories ICES Platform Codes 2024-01-16 ICES Platform Codes EUROPEAN DIRECTORY OF MARINE ENVIRONMENTAL RESEARCH PROJECTS (EDMERP) 2020-06-05 Delimited MEDIN data format categories 2024-01-29 MEDIN data format categories World Register of Marine Species (WORMS) 2024-02-07 SeaDataNet Measurement Periodicity Categories 2024-01-29 SeaDataNet Measurement Periodicity Categories BODC-approved data storage units (Spatial Unit) 2023-10-12 BODC-approved data storage units (Spatial Unit) Centimetres BODC-approved data storage units (Vertical Unit) 2023-10-12 BODC-approved data storage units (Vertical Unit) no limitations to public access Conditions for access and use apply CC-BY 4.0 Oceans 1999-01-01 2018-12-31 23.099742440339 23.945689705964 37.548549105377 38.028962462755 0 40 Geochemistry of major and trace elements in surface sediments of the Saronikos Gulf (Greece): assessment of contamination between 1999 and 2018 by Karageorgis A.P., Botsou F., Kaberi H., and Iliakis S., https://doi.org/10.1016/j.scitotenv.2020.137046 Delimited 1 https://cloud.emodnet-ingestion.eu/index.php/s/xS3vtHBaJaDlwL7 WWW:DOWNLOAD-1.0-http--download https://cdi.seadatanet.org/search/welcome.php?query=2848&query_code={0EA0A593-A211-4154-8CDD-97700FEBA931} WWW:LINK-1.0-http--link https://cdi-chemistry.seadatanet.org/search/welcome.php?query=2848&query_code={0EA0A593-A211-4154-8CDD-97700FEBA931} WWW:LINK-1.0-http--link COMMISSION REGULATION (EC) No 1205/2008 of 3 December 2008 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards metadata 2010-12-08 See the referenced specification false Corrigendum to INSPIRE Metadata Regulation published in the Official Journal of the European Union, L 328, page 83 2010-12-08 See the referenced specification false Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 See the referenced specification false For the grain-size distribution, sediment samples were wet sieved through a 63 µm stainless steel mesh. The finer fraction was analyzed with a Micromeritics Sedigraph 5100E and after 2017 with a Micromeritics III PLUS. The organic carbon content was determined with a Fisons Instruments CHN elemental analyzer type EA-1108. The major elements were determined in fused beads with a PANalytical (former Philips) PW-2400 wavelength X-Ray Fluorescence analyzer, equipped with Rh-tube. Trace elements were determined in sediment powder pellets with the above XRF, using PANalyticals’s Pro-Trace reference sample set and software for the instrument calibration.