1. IMS-METU Annual Meeting, June 15-16 2015, Istanbul, Turkey WP1: Data collection and metadata compilation in sea regions: current status EMODnet Chemistry Partner contribution: IMS-METU, Turkey

2. IMS-METU Annual Meeting, June 15-16 2015, Istanbul, Turkey General overview of the partner contribution: Current status SeawaterSedimentBiota Number of CDIs at beginning: 154100 Number of CDIs at year 1: 501000 Number of CDIs at year 2: 020136 Spatial distribution Seawater Sediments Biota

3. IMS-METU Annual Meeting, June 15-16 2015, Istanbul, Turkey Total number of stations per parameter group per matrix: GroupSeawaterSedimentBiota Fertilizers 6281 Silicates 5674 Organic matter 715118 Chlorophyll 2830 Partial pressure dissolved gases 4266 Acidity 1025 Pesticides and biocides 3715 Antifoulants Pharmaceuticals Heavy metals 59620136 Hydrocarbons 6852815 Radionuclides Plastics Current status

4. IMS-METU Annual Meeting, June 15-16 2015, 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

5. IMS-METU Annual Meeting, June 15-16 2015, 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

6. IMS-METU Total number of stations per parameter group per matrix: Annual Meeting, June 15-16 2015, 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