Databank

Databank

Posiva publishes Working Reports and Posiva Reports. From the year 2006 nearly all the reports have been published on our webpage and they can be found in the databank. In the databank you can also find our Annual Reviews and some other publications as well. You can also find print-quality pictures and useful links in the databank.

Recent publications


Workreport 2016-64

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Name:

Studies on the Aquatic Environment at Olkiluoto and Reference Area: 3. Olkiluoto Coastal Area in 2011-12

Writer:

Kirkkala, T., Mikkilä, E., Koivunen, S.

Language:

English

Page count:

186

Summary:

This working report presents the results of a sampling campaign at Olkiluoto in 2011-2012. The first campaign was in 2009-2010. The aim of the studies was to improve the knowledge of the aquatic systems and to produce input data to the safety case for the spent nuclear fuel repository at Olkiluoto. The first main objective was to estimate the areal biomass distribution and measure the dimensions of characteristic aquatic plants and animals. Another objective was to estimate the transfer of different elements from
water to the aquatic organisms paying special attention on key elements (C-14, Cl, I, Sr, Mo, Ag, Se, Nb, Cs, Ni, Pd, Pb and Sn) in the dose assessment within the safety case.

Surface water, sediment, macrophyte, phytoplankton, fish and macrobenthos samples were collected from the Olkiluoto coastal area for biomass and dimension measurements and analysis of element concentration. Water-to-biota concentration ratios were estimated for the coastal area.

The sampling procedures, pre-treatment methods and analytical methods were basically similar to methods used in 2009-2010. Some changes were made to make prcedures more fluent and developed qualified.

Keywords:

Water depth, water quality, surface sediments, macrophytes, phytoplankton, fish, macrobenthos, biomass, dimensions, element concentration, concentration ratios.

File(s):

Studies on the Aquatic Environment at Olkiluoto and Reference Area: 3. Olkiluoto Coastal Area in 2011-12 (pdf) (13.3 MB)


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