Temporal decrease of trivalent chromium concentration in a standardized algal culture medium: experimental results and implications for toxicity evaluation.
The fate of two trivalent chromium salts (nitrate and chloride) in ISO algal culture medium was followed over 72 h; i.e., the typical duration of algal toxicity tests. Fifty percent of the initial Cr spikes was lost from the solutions by 24 h, with losses up to 90% after 72 h. Monitoring of the temporal variability of Cr(III) concentrations in algal culture media appears necessary to better characterize the toxicity of trivalent chromium to algae.
Vignati
Davide A L
DA
University of Geneva Institut F.-A. Forel, Versoix, 1290, Switzerland. davide.vignati@terre.unige.ch
Beye
Mamadou L
ML
Dominik
Janusz
J
Klingemann
Anna O
AO
Filella
Montserrat
M
Bobrowski
Andrzej
A
Ferrari
Benoît J
BJ
D002840:Chromates / Q000633:toxicity; D017608:Chromium Compounds / Q000032:analysis / Q000737:chemistry / Q000633:toxicity*; D003470:Culture Media; D056890:Eukaryota / Q000187:drug effects*; D006863:Hydrogen-Ion Concentration; D013058:Mass Spectrometry; D017680:Potassium Compounds / Q000633:toxicity; D012015:Reference Standards; D018570:Risk Assessment; D017670:Sodium Compounds / Q000633:toxicity
D002840:Chromates; D017608:Chromium Compounds; D003470:Culture Media; D017680:Potassium Compounds; D017670:Sodium Compounds; C027373:potassium chromate(VI); C028982:sodium chromate(VI)