Abstract
The kinetics of radiocesium (137Cs) uptake by natural suspended matter collected from coastal waters in the southern Baltic has been studied under laboratory conditions. The uptake of radiocesium from seawater by the suspended matter took place immediately after introduction of the isotope and attained equilibrium within a few hours. Summer and winter suspended matter displayed equal Kd values, indicating similar sorption characteristics of radiocesium. The amounts of radiocesium sorbed from sea water were proportional to the suspended matter concentration studied,i.e. up to 312 mg dry wt dm−3. The relative uptake of radiocesium by live and dead plankton appeared to be the same. The desorption of radiocesium from dead plankton proceeded more rapidly and more intensively than sorption. There are no significant differences between the Kd values for plankton determined in laboratory experiments and those found for plankton populations under field conditions.
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Knapińska-Skiba, D., Bojanowski, R., Radecki, Z. et al. The biological and physico-chemical uptake of radiocesium by particulate matter of natural origin (Baltic Sea). Netherlands Journal of Aquatic Ecology 29, 283–290 (1995). https://doi.org/10.1007/BF02084226
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DOI: https://doi.org/10.1007/BF02084226