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Synergistic Effects of Copper and Butylic Ester of 2,4-Dichlorophenoxyacetic Acid (Esternon Ultra) on Amphibian Embryos

Author

Listed:
  • Cristina Silvia Pérez-Coll

    (Programa de Seguridad Química, Instituto de Ciencias Ambientales y Salud (ICAS), Fundación PROSAMA, Paysandú 752, (1405) Buenos Aires, Argentina
    Members of the Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
    Escuela de Ciencia y Tecnología, Universidad Nacional de San Martín, Argentina)

  • Jorge Herkovits

    (Programa de Seguridad Química, Instituto de Ciencias Ambientales y Salud (ICAS), Fundación PROSAMA, Paysandú 752, (1405) Buenos Aires, Argentina
    Members of the Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina)

Abstract

Cu 2+ and butylic ester of 2,4-Dichlorophenoxyacetic acid as Esternon Ultra (2,4-D) toxicity on Bufo arenarum embryos were evaluated by means of a short-term chronic toxicity test (AMPHITOX). The NOEC values for Cu and 2,4-D were 0.02 mg/L and 2 mg/L respectively. The toxicity profile curves for Cu and 2,4-D were reported. The interactions of the metal and the herbicide were evaluated by combined treatments with different concentrations of Cu and 2,4-D. Although in all cases, a synergistic effect between these chemicals was observed, the combination of concentrations exerting low level effects in isolated treatments resulted in more adverse embryonic survival. Considering that both products are extensively used in agroecosystems, this fact could be of concern for non target species like amphibians.

Suggested Citation

  • Cristina Silvia Pérez-Coll & Jorge Herkovits, 2006. "Synergistic Effects of Copper and Butylic Ester of 2,4-Dichlorophenoxyacetic Acid (Esternon Ultra) on Amphibian Embryos," IJERPH, MDPI, vol. 3(4), pages 1-5, December.
    • Handle: RePEc:gam:jijerp:v:3:y:2006:i:4:p:343-347:d:2411
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