Water, Air, and Soil Pollution

, Volume 76, Issue 3–4, pp 323–331 | Cite as

Chlorinated pesticide occurrence in the Uruguay River (Argentina-Uruguay)

  • Lucio J. Janiot
  • Jose L. Sericano
  • Otmaro E. Roses
Article
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Abstract

Water samples, collected trimonthly along the Uruguay River between February 1988 and December 1989, were analyzed for alpha- and gamma-HCH, heptachlor and its epoxide, aldrin, dieldrin, and the o-p′ and p-p′ isomers of DDE, DDD and DDT to assess the present status of the contamination in this South American region. In general, chlorinated pesticides were encountered at very low concentrations. HCH isomers were the most commonly detected compounds with concentrations ranging from the detection limits to 10 ng L−1. Heptachlor, heptachlor epoxide, aldrin, dieldrin, p-p′ DDE and p-p′ DDT were occasionally encountered while o-p′ DDE, p-p′ DDD, o-p′ DDD and o-p′ DDT were never detected. Compared to previous studies in the area, the present data seems to indicate that there was a decrease in the concentrations of these compounds.

Keywords

Detection Limit Water Sample Chlorinate Epoxide Present Status 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© Kluwer Academic Publishers 1994

Authors and Affiliations

  • Lucio J. Janiot
    • 1
  • Jose L. Sericano
    • 2
  • Otmaro E. Roses
    • 3
  1. 1.Servicio de Hidrografía Naval (S.H.N.)Buenos AiresArgentina
  2. 2.Geochemical and Environmental Research Group (G.E.R.G.), College of Geosciences and Maritime StudiesTexas A&M UniversityTexasUSA
  3. 3.Toxicología y Qumíca Legal, Facultad de Famacia y BioquímicaUniversidad de Buenos Aires (U.B.A.)Buenos AiresArgentina

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