• HELCOM Metadata catalogue
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Radioactive substances Cesium-137 in flatfish 2018

This core indicator evaluates the status of the marine environment based on concentrations of radioactive substances (Cs-137) in seawater and biota. Quantitative thresholds are used to evaluate if core indicators status is "Achieve", "Fail" or "Not assessed". Good status is achieved when concentrations reach levels measured before the Chernobyl accident in 1986.


This dataset displays the result of the indicator in HELCOM Assessment Scale 2 (Division of the Baltic Sea into 17 sub-basins) for flatfish.


Attribute information:

"HELCOM_ID" = Code of the HELCOM scale 2 assessment unit

"level_2" = Name of the HELCOM scale 2 assessment unit (subbasin)

"Indicator" = Name of HELCOM Core indicator

"Type" = Type of indicator

"Threshold value" = Threshold value for specific assessment unit

"Indicator value" = Value of indicator calculated for specific assessment unit

"Status" = Status of the indicator (“Achieve”, “Fail” or “Not assessed”)

Simple

Date (Publication)
2018-06-28
Unique resource identifier
https://metadata.helcom.fi/geonetwork/srv/eng/catalog.search#/metadata/06209e7e-650e-4eed-9642-cadb8e883452
pointOfContact
  HELCOM Secretariat

GEMET - INSPIRE themes, version 1.0

  • Oceanographic geographical features

Keywords
  • MADS

  • HOLAS2 2018 Core indicator

  • Core indicator

Use constraints
Other restrictions
Other constraints

Use constraints: Data can be used freely given that the source (HELCOM) is cited.

Access constraints
Other restrictions
Other constraints
Access constraints: No limitations on public access.
Spatial representation type
Vector
Metadata language
English
Topic category
  • Environment
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Begin date
2011-01-01
End date
2016-12-31
Unique resource identifier
EPSG:3035
Distribution format
  • ESRI Shapefile ( 1.0 )

OnLine resource
Download dataset ( WWW:LINK-1.0-http--link )
OnLine resource
Open in Map Viewer ( WWW:LINK-1.0-http--link )
Hierarchy level
Dataset

Conformance result

Date (Publication)
2010-12-08
Statement

Herring and seawater data cover most of the Baltic Sea, but flatfish covers only southern parts of the Baltic Sea. For time series maps, data from the year 2012 were used. The data are based on 137-Cs concentrations in a) herring (Clupea harengus L.), b) flounder (Platichthys flesus L.) and plaice (Pleuronectes platessa L.) and c) surface seawater (samples 0–10 m). Analyses have been done either in round fish (without head and entrails) or filets (herring), and for plaice and flounder from filets only. Concentrations (Bq kg-1) have been calculated per wet weight of the samples. Seawater concentrations (Bq m-3) have been analyzed in surface (0–10 m) water samples. Data of each matrix (herring, plaice and flounder and sea water) have been averaged by sub-basin and by year.


The data is collected by national authorities and reported annually to the HELCOM MORS Database. In addition to national quality assurance procedures, manual quality assurance is applied to the reported data and data entries are verified annually by the HELCOM MORS Expert Group.


Data was extracted from HELCOM MORS database for indicator calculation in November 2018.


Additional information:


http://metadata.helcom.fi/geonetwork/srv/eng/catalog.search#/metadata/06209e7e-650e-4eed-9642-cadb8e883452


Link to metadata of dataset used for indicator calculation:

http://metadata.helcom.fi/geonetwork/srv/eng/catalog.search#/metadata/2ac9b4b4-cf84-4c56-aad3-6c2b6192be37

File identifier
06209e7e-650e-4eed-9642-cadb8e883452 XML
Metadata language
English
Character set
UTF8
Hierarchy level
Dataset
Date stamp
2021-09-22T16:18:30
pointOfContact
  HELCOM Secretariat
 
 

Overviews

Spatial extent

N
S
E
W
thumbnail


Keywords

GEMET - INSPIRE themes, version 1.0
Oceanographic geographical features

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Associated resources

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