Contaminants-Naphthalene: water stations v2019

This product displays the stations present in EMODnet validated dataset where naphthalene levels have been measured in water. EMODnet Chemistry has included the gathering of contaminants data since the beginning of the project in 2009. For the maps for EMODnet Chemistry Phase III, it was requested to plot data per matrix (water,sediment, biota), per biological entity and per chemical substance. The series of relevant map products have been developed according to the criteria D8C1 of the MSFD Directive, specifically focusing on the requirements under the new Commission Decision 2017/848 (17th May 2017). The Commission Decision points to relevant threshold values that are specified in the WFD, as well as relating how these contaminants should be expressed (units and matrix etc.) through the related Directives i.e. Priority substances for Water. EU EQS Directive does not fix any threshold values in sediments. On the contrary Regional Sea Conventions provide some of them, and these values have been taken into account for the development of the visualization products. To produce the maps the following process has been followed: 1. Data collection through SeaDataNet standards (CDI+ODV) 2. Harvesting, harmonization, validation and P01 code decomposition of data 3. SQL query on data sets from point 2 4. Production of map with each point representing at least one record that match the criteria The harmonization of all the data has been the most challenging task considering the heterogeneity of the data sources, sampling protocols. Preliminary processing were necessary to harmonize all the data : • For water: contaminants in the dissolved phase; • For sediment: data on total sediment (regardless of size class) or size class < 2000 µm • For biota: contaminant data will focus on molluscs, on fish (only in the muscle), and on crustaceans • Exclusion of data values equal to 0

Identifier
Source https://data.blue-cloud.org/search-details?step=~012af2232bd-7800-47ee-b032-3de2dd69af9d
Metadata Access https://data.blue-cloud.org/api/collections/af2232bd-7800-47ee-b032-3de2dd69af9d
Provenance
Publisher Blue-Cloud Data Discovery & Access service; EMODnet Chemistry
Contributor National Institute of Oceanography and Applied Geophysics - OGS, Division of Oceanography
Publication Year 2024
OpenAccess true
Contact blue-cloud-support(at)maris.nl
Representation
Discipline Marine Science
Spatial Coverage (-32.000W, 19.540S, 64.250E, 86.000N)
Temporal Coverage Begin 1970-02-17T00:00:00Z
Temporal Coverage End 2017-10-26T00:00:00Z