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Efecto Ecotoxicológico de la Mezcla de Aroclor 1254 y Plomo en el Bioindicador Daphnia magna

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dc.contributor.authorDellafredad Tesén, Carlos Nicolás
dc.contributor.authorIannacone, José Alberto
dc.date.accessioned2022-01-18T14:57:43Z
dc.date.available2022-01-18T14:57:43Z
dc.date.issued2021
dc.description.abstractthe bioassay with the bioindicator species Daphnia magna Strauss, 1820 makes it possible to obtain the individual acute ecotoxicological effect and in a mixture of various chemical toxics by means of the mean lethal concentration (LC50). Objective:to determine the ecotoxicological effect of the mixture of aroclor 1254 and lead (Pb2+) on D. magna. Materials andMethods: LC50was measured with arochlor 1254> Pb2+, and subsequently the concentration without ecological effect (PNEC) for the individual effect and as a mixture. PNEC values were contrasted with category 4–E1 (lagoons and lakes) and E2 (rivers) of the Peruvian Environmental Quality Standard (Supreme Decree No. 004 2017-MINAM-Peru). Results:LC50 values gradually decreased after 48 h of exposure for both compounds individually and as a mixture. The proportion–synergy (PS) was calculated in ratios of 1:1, 3:2 and 4:1 (arochlor 1254: Pb2+), obtaining higher PS values in 3:2 and 4:1 in contrast to 1:1. Conclusions: the PNEC estimated arochlor 1254 concentration is similar to the conservation value of the aquatic environment category 4–E1 and E2, and the maximum concentration for Pb2+ is not adequate and should be reduced to strengthen the conservation of aquatic biota. Finally, the bioindicator D. magna ideally determined the mixture of aroclor 1254 and Pb2es_ES
dc.identifier.citationRevista Lasallista de Investigación-Vol. 18 No. 2es_ES
dc.identifier.issn1794-4449
dc.identifier.urihttp://hdl.handle.net/10567/3224
dc.language.isoeses_ES
dc.publisherUnilasallista Corporación Universitaria, Editorial Lasallistaes_ES
dc.rightsAcceso abierto
dc.rights.accessrightsinfo:eu-repo/semantics/openAcces
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/2.5/co/
dc.subjectUnilasallista Corporación Universitariaes_ES
dc.titleEfecto Ecotoxicológico de la Mezcla de Aroclor 1254 y Plomo en el Bioindicador Daphnia magnaes_ES

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Revista LASALLISTA de Investigación