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The influence of structural features of marine humic substances on the accumulation rates of cadmium by a blue mussel Mytilus edulis
AbstractLaboratory experiments revealed that both concentration and origin of humic substances (HS) influence the accumulation rates of cadmium by the blue mussel Mytilus edulis. In the concentration of humic substances typical of seawater, the increase is about 60% and 100%, respectively, for aquatic and sedimentary humic substances. The phenomenon was attributed to the stimulation of cadmium uptake due to complexing properties of the substances toward cadmium. Complexing capacity of sedimentary humic substances was found to be 0.57 μg/mg HS, that of aquatic substances 0.41 μg/mg HS. Cross Polarization Magic Angle Spinning (CP/MAS) 13C NMR of the investigated humic substances revealed differences in the spectra at about 175, 100, 55, and 32 ppm. This was attributed to the varying content of oxygen containing functional groups involved in formation of complexes with metal ions.
The influence of structural features of marine humic substances on the accumulation rates of cadmium by a blue mussel Mytilus edulis
AbstractLaboratory experiments revealed that both concentration and origin of humic substances (HS) influence the accumulation rates of cadmium by the blue mussel Mytilus edulis. In the concentration of humic substances typical of seawater, the increase is about 60% and 100%, respectively, for aquatic and sedimentary humic substances. The phenomenon was attributed to the stimulation of cadmium uptake due to complexing properties of the substances toward cadmium. Complexing capacity of sedimentary humic substances was found to be 0.57 μg/mg HS, that of aquatic substances 0.41 μg/mg HS. Cross Polarization Magic Angle Spinning (CP/MAS) 13C NMR of the investigated humic substances revealed differences in the spectra at about 175, 100, 55, and 32 ppm. This was attributed to the varying content of oxygen containing functional groups involved in formation of complexes with metal ions.
The influence of structural features of marine humic substances on the accumulation rates of cadmium by a blue mussel Mytilus edulis
Pempkowiak, J. (author) / Kozuch, J. (author) / Southon, T. (author)
Environmental International ; 20 ; 391-395
1994-02-16
5 pages
Article (Journal)
Electronic Resource
English
Stress-70 as indicator of heavy metals accumulation in blue mussel Mytilus edulis
| Online Contents | 2001
| Taylor & Francis Verlag | 2012