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Environmental Analysis & Ecology Studies

Comparative Study of Acute Toxicity of Herbicides Used in South America

  • Blasco Pedreros MP, Enriz RD and Giannini FA*

    Department of Chemistry, National University of San Luis, Argentina

    *Corresponding author: Giannini Fernando Angel, Professor at Adjunto, Chacabuco and Pedernera, Department of Chemistry, Faculty of Chemistry, Biochemistry and Pharmacy, San Luis, Argentina

Submission: August 21, 2018; Published: October 15, 2018

DOI: 10.31031/EAES.2018.04.000587

ISSN: 2578-0336
Volume4 Issue3


Fish are a reliable biological model to measure the environmental impact of different substances. Argentina is an agricultural producer country where its main crops being grains such as soybeans, wheat and corn; To increase the yield of the crops a large amount of herbicides are used. Among these the most used has been glyphosate, but others such as 2,4D and atarzine are also used. We carried out in this work two types of acute toxicity comparative studies for three commercial herbicides formulated with glyphosate, 2-4D and atarzine. Firstly, the acute toxicity evaluation was carried out against Poecillia reticulata, measuring the mortality of juveniles species in an exposure period of up to 96hours; determining for glyphosate that a dose of 12mg/L produced 100% mortality and that 6mg/L did not cause mortality, thus differing from 2, 4D and atarzine, which at a concentration of 116.8mg/L and 48mg/L respectively did not cause mortality. In the second place, an embryo hatching study was carried out in Danio rerio following methodologies proposed by the OECD (Guidelines for the Testing of Chemicals) for sublethal doses of the herbicides (6mg/L), none of them having any effect on the hatching of the eggs.

Keywords: Herbicides; Glyphosate; 2,4D; atarzine; Fish; Acute toxicity

Abbreviations : 2,4 D: Ácido 2,4-Diclorofenoxiacético

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