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Finnish Institute of Marine Research

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    EMODnet Chemistry aims to provide access to marine chemistry datasets and derived data products concerning eutrophication, acidity and contaminants. The importance of the selected substances and other parameters relates to the Marine Strategy Framework Directive (MSFD). This aggregated dataset contains all unrestricted EMODnet Chemistry data on potential hazardous substances, despite the fact that some data might not be related to pollution (e.g. collected by deep corer). Temperature, salinity and additional parameters are included when available. It covers the Greater North Sea and Celtic Seas. Data were harmonised and validated by the 'Aarhus University, Department of Bioscience, Marine Ecology Roskilde' in Denmark. The dataset contains water (profiles), sediment (profiles) and biota (profiles and timeseries). The temporal coverage is 1970–2021 for water measurements, 1973–2021 for sediment measurements and 1979–2021 for biota measurements. Regional datasets concerning contaminants are automatically harvested and the resulting collections are harmonised and validated using ODV Software and following a common methodology for all sea regions ( https://doi.org/10.6092/8b52e8d7-dc92-4305-9337-7634a5cae3f4). Parameter names are based on P01 vocabulary, which relates to BODC Parameter Usage Vocabulary and is available at: https://vocab.nerc.ac.uk/search_nvs/P01/. The harmonised dataset can be downloaded as as an ODV spreadsheet, which is composed of a metadata header followed by tab separated values. This spreadsheet can be imported into ODV Software for visualisation (more information can be found at: https://www.seadatanet.org/Software/ODV). In addition, the same dataset is offered also as a txt file in a long/vertical format, in which each P01 measurement is a record line. Additionally, there are a series of columns that split P01 terms into subcomponents (substance, CAS number, matrix...).This transposed format is more adapted to worksheet applications (e.g. LibreOffice Calc).

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    webODV visualisations via WMS from the harmonized, standardized, validated data collections that EMODnet Chemistry is regularly producing and publishing for all European sea basins for eutrophication and contaminants. You can analyze, visualize, subset and download EMODnet Chemistry data using interactive webODV services. More information at: https://emodnet.ec.europa.eu/en/chemistry#chemistry-services

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    This product displays for Triphenyltin, median values of the last 6 available years that have been measured per matrix and are present in EMODnet validated datasets. The median values ranges are derived from the following percentiles: 0-25%, 25-75%, 75-90%, >90%. Only "good data" are used, namely data with Quality Flag=1, 2, 6, Q (SeaDataNet Quality Flag schema). For water, only surface values are used (0-15 m), for sediment and biota data at all depths are used.

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    This product displays for Tributyltin, positions with values counts that have been measured per matrix and are present in EMODnet validated datasets. The product displays positions for all available years and per year.

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    This product displays for Anthracene, positions with values counts that have been measured per matrix and are present in EMODnet validated datasets. The product displays positions for all available years and per year.

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    This product displays for DDT, DDE, and DDD, positions with values counts that have been measured per matrix and are present in EMODnet validated datasets. The product displays positions for all available years and per year.

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    This product displays for Fluoranthene, positions with values counts that have been measured per matrix and are present in EMODnet validated datasets. The product displays positions for all available years and per year.

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    This product displays for Hexachlorobenzene, positions with values counts that have been measured per matrix and are present in EMODnet validated datasets. The product displays positions for all available years and per year.

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    This product displays for Mercury, positions with values counts that have been measured per matrix and are present in EMODnet validated datasets. The product displays positions for all available years and per year.

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    This product displays for Benzo(a)pyrene, positions with values counts that have been measured per matrix and are present in EMODnet validated datasets. The product displays positions for all available years and per year.