title: The influence of pH on cadmium toxicity to the green alga Stichococcus bacillaris and on the cadmium forms present in the culture medium.
abstract: Cadmium toxicity to the green alga Stichococcus bacillaris was investigated in media of pH 3-9. A significant decrease of cadmium toxicity occurred in both the acidic and alkaline ranges of pH. In media of pH 3 and 9, cadmium did not affect the dry mass content substantially. Maximum toxicity of cadmium was noticed at pH 6-7. Voltametric investigations showed a significant effect of pH on electrochemically measured cadmium content in the culture media. Hydrolysis of the medium components and formation of cadmium complexes with OH(-) ions caused a considerable decrease in amounts of electrochemically measured cadmium in the alkaline range of pH.
authors.affiliation: Institute of Ecology, Polish Academy of Sciences, Sławińskiego 18/3, 20-080 Lublin, Poland.
authors.forename: T
authors.initials: T
authors.lastname: Skowroński
authors.forename: S
authors.initials: S
authors.lastname: Szubińska
authors.forename: B
authors.initials: B
authors.lastname: Pawlik
authors.forename: M
authors.initials: M
authors.lastname: Jakubowski
authors.forename: R
authors.initials: R
authors.lastname: Bilewicz
authors.forename: E
authors.initials: E
authors.lastname: Cukrowska