http://bolin.su.se/data/ammar-2024-contaminant-monitoring-1 Yosr Ammar, Martin Sköld, Suzanne Faxneld, Anne L. Soerensen Bolin Centre Database 2024 Datafile Marine Ecosystems Contaminants in marine biota Monitoring programme Marine ecosystem Baltic Sea Earth science > Oceans > Marine environment monitoring Anne Soerensen 2024-03-13T13:00:26+00:00 English 1 The dataset contains 5 tab delimited .tsv files. `MCoM.csv` contains information on contaminants in a long format. - specimen_ID: Unique identifier for each specimen or homogenate - year: Sampling year presented in the format yyyy - date: Sampling date presented in the format yyyy-mm-dd - species: Full scientific name - species_EN: Common English name of the species - class: Species class: “Fish”, “Bird”, “Bivalve” - number_individuals: The number of specimens in the homogenate; else is 1 - sample_ID: Describes the sample sent to the laboratories for specific analysis and is a merger between the specimen_ID, the organ and the analytical method - substance_group: “Metals”, “PFAS”, “PCBs”, “Dioxins and furans”, “Pesticides”, “BFRs”, “Solvents”, “PAH”, “Organotin compounds” - contaminant: Name of contaminant as stated in Supplementary Table 1 (contaminant column) - value: Raw concentration reported by the laboratory, or a threshold if the value is below LOQ or LOD - unit: Unit for contaminant concentration - is_censored: TRUE or FALSE where TRUE refers to the value being an upper limit in the form of LOQ or LOD. See the Supplementary Table 3 for more details. - LOQ_LOD: Indicates how the value relates to the method LOQ and/or LOD. A full description is found in Supplementary Table 3 - uncertainty: The uncertainty level of the analysis. This is not calculated before 2011. - contaminant_full_name: Full name of the contaminant such as stated in Supplementary Table 3 - contaminant_alt_name: Alternative short name of the contaminant widely used - CAS_number: The CAS or unique international identifier of the contaminant - suspected_outlier: TRUE or FALSE where TRUE refers to a suspected outlier based on median absolute deviation from linear model residual for the combination of station, species and contaminant. - laboratory: Different laboratories as described in Table 1 and Supplementary File 1: “SU”, “UMU”, “SLU”, “IVL”, “SFA” - instrument: Instruments as described in Table 1 and Supplementary File 1: “ICP-MS”, “DMA80”, “LC-MS-MS”, “GC-ECD”, “GC-HRMS”, “GC-MS”, “Packed-GC”, “Double-beam spectrophotometer”, “AAS” “HPLC-FLC” - analytical_method: Analytical methods as described in Table 1 and Supplementary File 1: ”SU_Metals”, ”SU_Hg”, ”SU_PFAS”, ”SU_CLC_BFR”, ”UMU_Dioxin_PCB”, ”SLU_Hg”, ”SLU_Metals”, ”IVL_PAH”, ”SFA_CLC_BFR”, ”SLU_PFAS”, “IVL_OT” - sex: “Female”, “Male”, “Hermaphrodite”, “Immature”, “Mixed”, “Undetermined”, else is NA - total_length: Specimen total body length in millimetres for fish (including tail), mussel or egg, average if homogenate, else is NA - age: The specimen age, average if homogenate, else is NA - weight: Specimen total weight in gram (g), average if homogenate, else is NA - organ: Sampled organ for contaminant analysis: “Liver” or “Muscle” for fish, “Soft tissue” for mussels, and “Egg content” for birds. - fat_percentage: Fat percentage in the analysed organ done by the laboratory with the contaminants analyses. - dry_weight_percentage: Dry weight percentage of the analysed organ done by the laboratory with the contaminants analyses. - shell_thickness: Birds shell thickness (mm), else is NA - d13C: Isotope ratio 13C/12C relative internal standards (δ13C; ‰) - d15N: Isotope ratio 15N/14N relative to air (δ15N; ‰) - C_dw_percentage: Total carbon in relation to dry weight - N_dw_percentage: Total nitrogen in relation to dry weight - station_name: Stations full name in English alphabet (ö changed to o and å,ä to a) - latitude: Latitude of the station (WGS84 projection system) - longitude: Longitude of the station (WGS84 projection system) - HELCOM_basin: HELCOM basin divisions to which belongs the station (see HELCOM basin divisions at https://helcom.fi/) - ICES_basin: ICES basin divisions to which belongs the station (see ICES basin divisions at http://www.ices.dk/) - ICES_station: Station code corresponding to the code in ICES databases - season: Sampling season “Spring” (March to mid-July) or “Autumn” (mid-July to December) `Intercalibration_metals.csv` contains the intercalibration files for metals with year, specimen_ID, laboratory, species, station_name, fat_percentage and the contaminants (Hg, Ni, Cr, Pb, Cd, Zn, As, Ag). `Intercalibration_PFAS.csv` contains the values on the Per- and Polyfluoroalkyl Substances with specimen_ID, laboratory, species, station_name, and the area (marine or freshwater). `Intercalibration_BFR.csv` contains the values of Brominated Flame Retardants with specimen_ID, laboratory, species, station_name, organ and fat_percentage. `intercalibration_CLC.csv` contains values of non-dioxin-like polychlorinated biphenyls (ndl-PCBs), hexachlorocyclohexanes (HCHs), hexachlorobenzene (HCB), and dichlorodiphenyltrichloroethane (DDT) with specimen_ID, laboratory, species, station_name, organ and fat_percentage. These intercalibrations were made during laboratory changes for contaminants analyses. A version of this dataset will be continuously maintained and updated at https://github.com/NRM-MOC/mcomDb.