HELCOM MORS databases

HELCOM Monitoring of radioactive substances expert group (MORS Expert group) stores environmental levels of radioactivity and liquid discharges of radionuclides to two databases:

HELCOM MORS Environmental database stores environmental levels of radioactivity in the Baltic Sea, reported by contracting parties in accordance with relevant HELCOM recommendations and guidelines. Environmental database is updated and verified annually by HELCOM contracting parties. The latest verified version of the database consists of concentrations of radionuclides in biota, seawater and sediment from time period 1984-2010 (Database verified in 2012).

Number of samples and measurements in MORS Environmental database, years 1984-2010:

Download HELCOM MORS Environmental database (MS Access mdb format).

Relationship diagram of MORS Environmental database.

Extractions of HELCOM MORS environmental database can be viewed and downloaded in GIS format via HELCOM Map and Data service (under folder Pollution -> Hazardous substances -> Radioactive substances (MORS)). HELCOM MORS environmental data can be accessed also via IAEA's MARIS portal.

HELCOM MORS Discharge database stores discharges of radionuclides from nuclear power plants in the Baltic Sea region as well as Sellafield and La Hague reprocessing sites. MORS discharge database is hosted by STUK, Finnish Radiation and nuclear sadety authority. Discharge database is updated and verified annually by HELCOM contracting parties. The latest verified version of the database consists of discharge data for time period 1952-2011 (Database verified in 2012).

Download HELCOM MORS Discharge database (MS Access mdb format).

Relationship diagram of MORS Discharge database.

Extractions of HELCOM MORS discharge database can be viewed and downloaded in GIS format via HELCOM Map and Data service (under folder Pollution -> Waterborne loads) . HELCOM MORS discharge data can be accessed also via IAEA's DIRATA portal.

Related HELCOM Indicator fact sheets:

Total amounts of the artificial radionuclide caesium -137 in Baltic Sea sediments

Concentrations of the artificial radionuclide caesium-137 in Baltic Sea fish and surface waters

Liquid discharges of Cs-137, Sr-90 and Co-60 into the Baltic Sea from local nuclear installations

Related HELCOM publications:

Radioactivity in the Baltic Sea, 1999-2006 - HELCOM thematic assessment (2009)

Long-lived radionuclides in the seabed of the Baltic Sea; Report of the Sediment Baseline Study of HELCOM MORS-PRO in 2000-2005 (2007) (available only on website)

Radioactivity in the Baltic Sea 1992-1998 (2003)

Intercomparison of sediment sampling devices using articifial radionuclides in Baltic Sea sediments - The MOSSIE Report  (2000)

Radioactivity in the Baltic Sea 1984-1991 (1995)

Three years observations of the levels of some radionuclides in the Baltic Sea after the Chernobyl accident; Seminar on Radionuclides in the Baltic Sea; 29 May 1989 (1989)

Updated 21 August 2012