Selecting a sensitive battery of bioassays to detect toxic effects of metals in effluents

dc.creatorMagalhães, Danielly de Paiva
dc.creatorMarques, Mônica Regina da Costa
dc.creatorBaptista, Darcilio Fernandes
dc.creatorBuss, Daniel Forsin
dc.date2015-04-14T12:38:13Z
dc.date2015-04-14T12:38:13Z
dc.date2014
dc.date.accessioned2023-09-27T00:15:59Z
dc.date.available2023-09-27T00:15:59Z
dc.identifierMAGALHÃES, Danielly de Paiva et al. Selecting a sensitive battery of bioassays to detected toxic effects of metals in effluents. Ecology and Environmental Safety, n.110, 2014
dc.identifier0147-6513
dc.identifierhttps://www.arca.fiocruz.br/handle/icict/9982
dc.identifier10.1016/j.ecoenv.2014.08.019
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8899117
dc.descriptionThe use of bioassay batteries is necessary to evaluate toxic effects at various biological levels. The selection of bioassays without prior testing and determination of the most sensitive/suitable groups for each impact may allow the discharge of effluents that pose a threat to the environment. The present study tested and selected a battery of sensitive ecotoxicological bioassays for detecting toxic effects of metals. The sensitivities of six organisms were evaluated (algae Pseudokirchneriella subcapitata and Chlorella vulgaris, Cladocera Daphnia similis and Ceriodaphnia dubia, and fish Poecilia reticulata and Danio rerio) after exposure to 10 individual metal species deemed toxic to the aquatic environment (Ag+, Cd2+, Cu+, Cu2+, Cr3+, Cr6+, Pb2+, Ni2+, Zn2+, and Hg2+) and to real (steel-mill) and laboratory simulated effluents. In the bioassays, fish were the least sensitive; D. rerio showed no sensitivity to any of the effluents tested. P. subcapitata was a good bioindicator of Cr3+ toxicity, and D. similis was the most sensitive organism to Hg2+; but the toxic effect of effluents with higher levels of Hg2+ was better detected by C. dubia. The most sensitive battery of bioassays to detect low concentrations of dissolved metals in effluents was the 72-h chronic test with C. vulgaris and the 48-h acute test with C. dubia.
dc.descriptionSept. 2015
dc.formatapplication/pdf
dc.languageeng
dc.publisherElsevier
dc.rightsopen access
dc.subjectSteel-mill effluent
dc.subjectEcotoxicology
dc.subjectImpact assessment
dc.subjectConcentration additions model
dc.subjectAcute toxicity
dc.subjectChronic toxicity
dc.titleSelecting a sensitive battery of bioassays to detect toxic effects of metals in effluents
dc.typeArticle


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