Toxicity of zirconium on growth of two green algae

• Type: Article in International Scientific Journal
• Date: 2007

Authors

Ana S B Martins (Author) Other; Paula M F C Fresco (Author) FFUP; Mario J Pereira (Author) Other

Journal

Title: Fresenius Environmental Bulletin

Vol. 16

Pages: 869-874

ISSN: 1018-4619

Publisher: Technische Universitat Munchen

Indexing

ISI Web of Knowledge - 2 Citations

Scopus - 4 Citations

Scientific classification

FOS: Natural sciences > Earth and related Environmental sciences

Other information

Authenticus ID: P-004-D7Z

Abstract (EN): Due to the growing application of zirconia in the manufacturing of prosthesis, and adding to the fact those being placed every day in numerous dentistry clinics, it became relevant to understand in which way the presence of zirconium (Zr(IV)) in aquatic environments is responsible for causing environmental changes. The potential toxicity effect of Zr(IV) was tested using two green algae: Pseudokirchneriella subcapitata (Korshikov) Hindak and Pandorina morum (Muller) Bory. Algal cultures were grown at four pH values (6.5, 7.2, 7.5 and 8.0) in the presence of seven different concentrations of Zr(IV). Concerning the toxicity elicited by zirconium on the green algae tested, this metal inhibited growth of both, with P. morum being more sensitive. Furthermore, an alkaline environment seems to promote the toxic effects of zirconium.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6