Natural decrease of the intensity level of artificial radioactive isotopes in the Barents Sea     

Matishov  G. G.  Matishov  D. G.  Solatie  D.  Kasatkina  N. E.  Leppanen  A. 《Doklady Earth Sciences》2009,427(2):1006-1011

The results of radioecological investigations carried out within the framework of the Russian-Finnish high-latitude expedition in 2007 are presented. The characteristics of the present-day accumulation level of the significant radioecological isotopes ¹³⁷Cs, ⁹⁰Sr and ^239,240Pu in the Barents Sea are described. The comparative analysis is performed for the radiation pollution of the environment in the 1980s and 1990s and in the first decade of the 21st century. Natural purification processes in the marine environment are the main factors of the decrease in the intensity level of artificial radioactive isotopes. These processes include repeated dilution, nuclear decay, occlusion by sediments and suspended solid material, and accumulation by aquatic inhabitants. A stable decreasing trend is observed for the intensity level of artificial radioactive isotopes in the Barents Sea.  相似文献   

Effect of sampling frequency on detection of natural variability in phytoplankton: unattended high-frequency measurements on board ferries in the Baltic Sea     

Rantajarvi  Eija; Olsonen  Riitta; Hallfors  Seija; Leppanen  Juha-Markku; Raateoja  Mika 《ICES Journal of Marine Science》1998,55(4):697-704

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New data on the concentration of plutonium isotopes in the sediments of the Barents Sea     

Matishov  G. G.  Kasatkina  N. E.  Leppanen  A. -P.  Matishov  D. G.  Solatie  D. 《Doklady Earth Sciences》2011,440(2):1445-1448

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An environmental assessment of risk in achieving good environmental status to support regional prioritisation of management in Europe     

P. Breen  L.A. Robinson  S.I. Rogers  A.M. Knights  G. Piet  T. Churilova  P. Margonski  N. Papadopoulou  E. Akoglu  A. Eriksson  Z. Finenko  V. Fleming-Lehtinen  B. Galil  F. Goodsir  M. Goren  O. Kryvenko  J.M. Leppanen  V. Markantonatou  S. Moncheva  T. Oguz  L. Paltriguera  K. Stefanova  F. Timofte  F. Thomsen 《Marine Policy》2012

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