European Directory of Marine Environmental Data (EDMED)

Data set information

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General
Data set name

Naturally occurring radionuclides in sea water and sediments (1983-)

Data holding centreCentre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory
CountryUnited Kingdom  United Kingdom
Time periodFrom 1983 onwards
OngoingYes
Geographical area

Irish Sea, southern North Sea

Observations 
Parameters

Transmittance and attenuance of the water column; Industrial discharges; Sediment grain size parameters; Salinity of the water column; Geological sample radioactivity; Sediment water content, porosity and surface area; Radioactivity in the water column; Concentration of suspended particulate material in the water column

Instruments

Transmissometers; discrete water samplers; continuous water samplers; salinity sensor; sediment grabs; unconsolidated sediment corers

Description 
Summary

Radionuclides in the uranium- and thorium-decay series, having differing half-lives and chemical properties, have been measured in sediments and seawater to quantify the rates of important sediment processes such as bioturbation, sediment accumulation and scavenging of dissolved elements by suspended particulate. The influence of water depth and sediment type have been investigated, and scavenging over a number of time scales (e.g. tidal cycle, seasonal) has been assessed. In addition, anthropogenic enhancement of concentrations has been identified in relation to phosphate processing and nuclear fuel fabrication in the eastern Irish Sea and the Esk and Ribble estuaries.

OriginatorsCentre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory
Data web sitehttp://www.cefas.co.uk/
Availability 
OrganisationCentre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory
AvailabilityLicence
ContactContracts Office, CEFAS, Lowestoft
Address

Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory
Pakefield Road
Lowestoft
Suffolk
NR33 OHT
United Kingdom

Telephone+44 1621 562244
Facsimile+44 (0)1502 513865
Administration 
Collating centreBritish Oceanographic Data Centre
Local identifier1029048
Global identifier427
Last revised2009-05-22