Figure

Concentrations of CB188 relative to assessment criteria

Figure Created 17 Aug 2022 Published 21 Aug 2022 Last modified 28 Mar 2023

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Topics: Water and marine environment Environment and health

The figure shows concentrations of CB188 relative to the assessment criteria BAC (Backgound Assessment Concentration) and EQS (Environmental Quality Standard as given in the Water Framework Directive). For instance, a point at '4x EQS' indicates a site where the observed concentration was four (4) times the EQS limit. The points have been spread in the x direction in order to avoid too much overlap.

https://www.eea.europa.eu/data-and-maps/figures/concentrations-of-cb188-relative-to/fig02-129845-mar001-v4.eps/image_large

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Methodology:: For status, the 90% percentile was used over the 10-year period, 2010-2019, to classify concentrations in 'low', 'moderate' and 'high' classes using two threshold values. The lower of the two thresholds was OSPAR's BAC criterion, while the threshold value was the EQS given by the Water Framework Directive. In order to calculate status, at least 1 year (Mediterranean) or 3 years (other areas) of data since 2010 are needed.
Units:: Unitless (y shows the relationship between the observed concentration and the concentration limit)
Rights:: Copyrights datasets:
1- “Contaminants in biota from EMODnet Chemistry”: https://www.emodnet-chemistry.eu/data and https://www.emodnet-chemistry.eu/data/acknowledgement
2- "Contaminants in biota from ICES DOME (Marine Environment)": file:///C:/Users/usuario-local/Downloads/ICES-Data-policy.pdf

Copyrights of the figure: EEA standard re-use policy: unless otherwise indicated, re-use of content on the EEA website for commercial or non-commercial purposes is permitted free of charge, provided that the source is acknowledged (https://www.eea.europa.eu/legal/copyright). Copyright holder: European Commission, European Environment Agency (EEA).
Owners:: European Environment Agency (EEA)
Processors:: Norwegian Institute for Water Research (NIVA)
Figure type:: Graph

Additional information

Concentrations of CB-118 in mussels and oysters are relative to environmental thresholds (3). Each point represents a location (station). The green points under the yellow line are locations with concentrations under BAC; the yellow points are over BAC but under EQS (Environmental Quality Standard), while the red points are locations with concentrations over EQS. The inset (upper left) shows time trends (change per decade) by the MSFD region over the most recently available 10-year period (meta-analysis of trends for each location). Significant decreases are shown in green, while insignificant time trends are shown in black. Regions not included in the time trend graph did not have enough data to enable trend analysis.

Geographical coverage
- Belgium, France, Germany, Ireland, Italy, Norway, Poland, Spain, Sweden, Netherlands, United Kingdom.
- Adriatic Sea, Ionian Sea and Central Mediterranean Sea, Western Mediterranean Sea, Greater North Sea, Celtic Seas, Bay of Biscay/Iberian Coast, Baltic Sea.

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Geographic coverage

Adriatic Sea Baltic Sea Bay of Biscay Belgium Celtic Sea Central Mediterranean Sea France Germany Greater North Sea Iberian Coast Ionian Sea Ireland Italy Netherlands Norway Poland Spain Sweden United Kingdom Western Mediterranean Sea