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Monitoring of Organophosphorus Pesticide Residues in Vegetables of Agricultural Area in Venezuela

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Abstract

The purpose of this study was to determine the residues of seven pesticides organophosphorus (methamidophos, diazinon, chlorpyriphos, parathion-methyl, dimethoate, malathion and tetrachlorvinphos), in some vegetables like: potato, lettuce, tomato, onion, red pepper and green onion cultivated in José María Vargas County in Táchira State, Venezuela. The research permitted to detect that 48.0% of the samples were contaminated with some of the pesticides studied. Methamidophos was founded in the vegetables in the rank of 6.3%–65.5%. The results show that 16.7% of the samples tested have residues higher than the maximum limits permitted.

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Acknowledgment

The authors thank the Deanship of research of the University of Táchira and the Agronomy Faculty of Zulia University for supporting this project.

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Authors and Affiliations

  1. Phytochemistry Laboratory, Deanship of Research, Táchira University, San Cristóbal, Venezuela

    América Quintero, Nélida G. de Colmenares & Tibisay Ramírez

  2. Department of Applied Chemistry, School of Engineering, ETSII, National Distance Education University, Madrid, Spain

    María J. Caselles

  3. Chemistry Department, Agronomy Faculty, Zulia University, Maracaibo, Venezuela

    Gretty Ettiene & Deisy Medina

Authors
  1. América Quintero
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  2. María J. Caselles
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  3. Gretty Ettiene
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  4. Nélida G. de Colmenares
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  5. Tibisay Ramírez
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  6. Deisy Medina
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Correspondence to América Quintero.

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Quintero, A., Caselles, M.J., Ettiene, G. et al. Monitoring of Organophosphorus Pesticide Residues in Vegetables of Agricultural Area in Venezuela. Bull Environ Contam Toxicol 81, 393–396 (2008). https://doi.org/10.1007/s00128-008-9511-9

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  • DOI: https://doi.org/10.1007/s00128-008-9511-9

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