title: Genotoxicity and toxicity evaluations of ECF cellulose bleaching effluents using the Allium cepa L. test.
abstract: Toxicity and genotoxicity tests were performed on root cells of Allium cepa in order to evaluate wastewater quality following an ECF cellulose bleaching process. The results revealed a toxic effect of the effluent, with inhibition of meristem growth and generally lower values of metaphase, anaphase and telophase indices at pH 10.5 than pH 7 for all effluent concentrations. The genotoxicity effect was different from the toxic effect given that the micronucleus and the chromosomal aberration tests in anaphase-telophase cells were low over all ranges of the studied effluent concentrations.
authors.affiliation: Faculty of Science, Universidad Católica de la Santísima Concepción, Concepción, Chile.
authors.forename: O
authors.initials: O
authors.lastname: Roa
authors.forename: M C
authors.initials: MC
authors.lastname: Yeber
authors.forename: W
authors.initials: W
authors.lastname: Venegas
mesh_terms: D057886:Bleaching Agents / Q000633:toxicity*; D002455:Cell Division / Q000187:drug effects; D002482:Cellulose / Q000378:metabolism*; D002869:Chromosome Aberrations; D018519:Meristem / Q000187:drug effects*; D008940:Mitotic Index; D009152:Mutagenicity Tests; D019697:Onions / Q000166:cytology / Q000187:drug effects*
chemical_list: D057886:Bleaching Agents; D002482:Cellulose