© OpenStreetMap contributors
- Add External Layer
- Upload Shapefile
- Layer Tutorial
- Close
Use the checkbox () to show or hide a layer.
Use the radio buttons () to select a layer to use with the identify function.
- Layers
- Opacity
Available layers
(ctrl+c)
Search for marine data across UK organisations
- API
- How-To
- About
- Contact MEDIN
- Share
Metadata: Dredge Contaminant Seabed Data in UK Waters 1998 - 2022
Abstract:
Dredge sediment contaminant concentrations, including trace metals, organotoxins, polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), organochlorine pesticides (OCs), and polybrominated diphenyl ethers (PBDEs) data collated under the Action Level Review Project by Centre for Environment, Fisheries and Aquaculture Science (Cefas) within UK waters from 1998 to 2022. The purpose of this study was to determine potential impacts of proposed action levels in the assessment of dredged sediment for licensing of disposal at sea.
Data holder:
Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS)
| Other details | ||
| Internal code | Internally assigned metadata identifier | 9694 |
| Title | The title is used to provide a brief and precise description of the dataset such as 'Date', 'Originating organisation/programme', 'Location' and 'Type of survey'. All acronyms and abbreviations should be reproduced in full. | Dredge Contaminant Seabed Data in UK Waters 1998 - 2022 |
| File Identifier | The File Identifier is a code, preferably a GUID, that is globally unique and remains with the same metadata record even if the record is edited or transferred between portals or tools. | CEFAS54d6dbfd-6c54-4798-9327-af6ca3f081da |
| Resource Identifier | This is the code assigned by the data owner. | CEFAS21832 |
| Resource type | The resource type will likely be a dataset but could also be a series (collection of datasets with a common specification) or a service. | dataset |
| Start date | This describes the date the resource starts. This may only be the year if month and day are not known | 1998 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2022 |
| Frequency of updates | This describes the frequency with which the resource is modified or updated i.e. a monitoring programme that samples once per year has a frequency that is described as 'annually'. | notPlanned |
| Abstract | The abstract provides a clear and brief statement of the content of the resource. | Dredge sediment contaminant concentrations, including trace metals, organotoxins, polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), organochlorine pesticides (OCs), and polybrominated diphenyl ethers (PBDEs) data collated under the Action Level Review Project by Centre for Environment, Fisheries and Aquaculture Science (Cefas) within UK waters from 1998 to 2022. The purpose of this study was to determine potential impacts of proposed action levels in the assessment of dredged sediment for licensing of disposal at sea. |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | Action Levels (ALs) are thresholds which are used to determine whether dredged material is suitable for disposal at sea, by providing a proxy risk assessment for potential impacts to biological features such as fish and benthos. There are two thresholds, Action Level 1 (AL1) is the lower threshold and Action Level 2 (AL2) is the upper threshold. Sediments with contaminant concentrations lower than AL1 are generally considered acceptable for disposal at sea, pending other considerations such as physical suitability for the disposal site and potential beneficial uses and sediments with contaminant concentrations above AL2 are considered unacceptable for uncontrolled disposal at sea without special handing and containment (MMO, 2015). Sediments with contaminant concentrations between AL1 and AL2 are evaluated using a weight of evidence approach currently. Dredge sediment contaminant data was collated and assessed. A user-friendly and accessible sediment management framework application has been developed. Action Levels Viewer ( `https://rconnect.cefas.co.uk/actionlevelstool/`_) The source data is owned by the Marine Management Organisation (MMO). MMO have agreed for this data to be made available. Historical data for Scotland and Wales has been included. All data undergoes quality assurance checks as part of the licensing assessment. Laboratories are validated for the required methodologies.Mason, C.; Vivian, C.; Griffith, A.; Warford, L.; Hynes, C.;Barber, J.; Sheahan, D.; Bersuder, P.; Bakir, A.; Lonsdale, J.-A. Reviewing the UK’s Action Levels for the Management of Dredged Material. Geosciences 2022, 12, 3. `https://doi.org/10.3390/geosciences12010003`_ .. `https://rconnect.cefas.co.uk/actionlevels_tool/`: https://rconnect.cefas.co.uk/actionlevelstool/ .. _`https://doi.org/10.3390/geosciences12010003`: https://doi.org/10.3390/geosciences12010003 |
| Related keywords | ||
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Concentration of polycyclic aromatic hydrocarbons (PAHs) in biota |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Concentration of other organic contaminants in biota | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Inorganic chemical composition of sediment or rocks | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Human activity | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Habitats and biotopes | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Unknown | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Marine Environmental Data and Information Network | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | data.gov.uk | |
| Geographical coverage | ||
| North | The northern-most limit of the data resource in decimal degrees | 60 |
| East | The eastern-most limit of the data resource in decimal degrees | 4 |
| South | The southern-most limit of the data resource in decimal degrees | 49 |
| West | The western-most limit of the data resource in decimal degrees | -9 |
| Responsible organisations | ||
| Role | The point of contact is person or organisation with responsibility for the creation and maintenance of the metadata for the resource. | pointOfContact |
| Organisation name | Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) | |
| Delivery point | Cefas Lowestoft Laboratory, Pakefield Road | |
| Postal code | NR33 0HT | |
| City | Lowestoft | |
| Administrative area | Suffolk | |
| Country | UK | |
| data.manager@cefas.co.uk | ||
| Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
| Organisation name | Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) | |
| Delivery point | Cefas Lowestoft Laboratory, Pakefield Road | |
| Postal code | NR33 0HT | |
| City | Lowestoft | |
| Administrative area | Suffolk | |
| Country | UK | |
| data.manager@cefas.co.uk | ||
| Role | The custodian is the person or organisation that accepts responsibility for the resource and ensures appropriate care and maintenance. If a dataset has been lodged with a Data Archive Centre for maintenance then this organisation is be entered here. | custodian |
| Organisation name | Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) | |
| Delivery point | Cefas Lowestoft Laboratory, Pakefield Road | |
| Postal code | NR33 0HT | |
| City | Lowestoft | |
| Administrative area | Suffolk | |
| Country | UK | |
| data.manager@cefas.co.uk | ||
| Role | The distributor is the person or organisation that distributes the resource. | distributor |
| Organisation name | Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) | |
| Delivery point | Cefas Lowestoft Laboratory, Pakefield Road | |
| Postal code | NR33 0HT | |
| City | Lowestoft | |
| Administrative area | Suffolk | |
| Country | UK | |
| data.manager@cefas.co.uk | ||
| Role | The owner is the person or organisation that owns the resource. | owner |
| Organisation name | Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) | |
| data.manager@cefas.co.uk | ||
| Role | The owner is the person or organisation that owns the resource. | owner |
| Organisation name | Marine Management Organisation (MMO) | |
| info@marinemanagement.org.uk | ||
| Resource locators | ||
| Locator URL | Web address (URL) that links to the resource | https://data.cefas.co.uk/view/21832 |
| Locator name | Name of the web resource | Cefas Data Portal |
| Dataset constraints | ||
| 20.1 Limitations on Public Access - Access constraints | This states `otherRestrictions` from ISO vocabulary RestrictionCode and is an INSPIRE/GEMINI requirement. | otherRestrictions |
| 20.2 Limitations on Public Access - Other constraints | noLimitations | |
| 21.1 Conditions for Access and Use - Use constraints | This states `otherRestrictions` from ISO vocabulary RestrictionCode and is an INSPIRE/GEMINI requirement. | otherRestrictions |
| 21.2 Conditions for Access and Use - Other constraints | https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ | |
| Version info | ||
| Date of publication | The publication date of the resource or if previously unpublished the date that the resource was made publicly available via the MEDIN network. | 2024-05-15 |
| Date of last revision | The most recent date that the resource was revised. | 2025-08-28 |
| Date of creation | The date that the resource was created. | 2024-03-06 |
| Harvest date | The date which this record has been (re)harvested from the provider. | 2026-04-19 |
| Metadata date | The date when the content of this metadata record was last updated. | 2025-08-28 |
| Metadata standard name | The name of the metadata standard used to create this metadata | MEDIN |
| Metadata standard version | The version of the MEDIN Discovery Metadata Standard used to create the metadata record | 3.1.1 |