IMS-METU Annual Meeting, June , Istanbul, Turkey WP1: Data collection and metadata compilation in sea regions: current status EMODnet Chemistry Partner contribution: IMS-METU, Turkey

IMS-METU Annual Meeting, June , Istanbul, Turkey General overview of the partner contribution: Current status SeawaterSedimentBiota Number of CDIs at beginning: Number of CDIs at year 1: Number of CDIs at year 2: Spatial distribution Seawater Sediments Biota

IMS-METU Annual Meeting, June , Istanbul, Turkey Total number of stations per parameter group per matrix: GroupSeawaterSedimentBiota Fertilizers 6281 Silicates 5674 Organic matter Chlorophyll 2830 Partial pressure dissolved gases 4266 Acidity 1025 Pesticides and biocides 3715 Antifoulants Pharmaceuticals Heavy metals Hydrocarbons Radionuclides Plastics Current status

IMS-METU Annual Meeting, June , Istanbul, Turkey Data quality control performed by the data center: Type of QC: SeawaterSedimentBiotaNotes: Position checkVVV Date checkVVV When date is missing but month is available then the artificial date =15 th day of the month is assigned. Missing valueVVV Range checkV SpikeVVV Pre-existing statistics VVV In case of sediments and biota: comparison with data from the same location from other years Visualization and manual checks V Others:V CRM Consistency with other parameters

IMS-METU Annual Meeting, June , Istanbul, Turkey Difficulties encountered: Historical data Metadata are not complete, e.g. just «Location name, Month». Missing/wrong units Inconsistence of data obtained with different methods, difficulties with performing QC P01 parameter mapping Restrictions on data sharing set by funding agency

IMS-METU Total number of stations per parameter group per matrix: Annual Meeting, June , Istanbul, Turkey GroupSeawaterSedimentBiota Fertilizers (since 2012, Mediterranean, Aegean, Black Sea) ~400 Silicates ~400 Organic matter ~50 Chlorophyll ~200 Partial pressure dissolved gases ~350 Acidity ~150 Pesticides and biocides 9 Antifoulants Pharmaceuticals Heavy metals 189 Hydrocarbons 9 Radionuclides Plastics To be considered Planning for the last year