Toxicity of zirconium on growth of two green algae

• Tipo: Artigo em Revista Científica Internacional
• Data: 2007

Autores

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

Revista

Título: Fresenius Environmental Bulletin

Vol. 16

Páginas: 869-874

ISSN: 1018-4619

Editora: Technische Universitat Munchen

Indexação

ISI Web of Knowledge - 2 Citações

Scopus - 4 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Ciências da terra e ciências do ambiente

Outras Informações

ID Authenticus: 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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 6