Organochlorine pesticide concentrations in sediment and amphibian tissue in playa wetlands in the Southern High Plains, USA

Louise S. Venne, Todd A. Anderson, Baohong Zhang, Loren M. Smith, Scott T. McMurry

Research output: Contribution to journalArticle

14 Scopus citations

Abstract

Playa wetlands are critical habitat for wildlife in the Southern High Plains (SHP), a region dominated by agriculture. Little information on pesticide levels exists for playas, and thus we measured organochlorine pesticide concentrations in sediment and amphibians collected from playas in cropland and grassland watersheds. Heptachlor, α- and β-BHC, γ-chlordane, and dieldrin were detected in sediment and/or tissue samples, typically at or below 1 ng/g, dry weight. However, mean DDT and DDE reached 19.7 and 4.1 ng/g in sediments and 6.3 and 2.4 ng/g in tissues, respectively. Land use did not influence pesticide levels in sediment or amphibians.

Original languageEnglish
Pages (from-to)497-501
Number of pages5
JournalBulletin of Environmental Contamination and Toxicology
Volume80
Issue number6
DOIs
StatePublished - Jun 2008

Keywords

  • Bufo cognatus
  • Great plains toad
  • Spadefoot toad
  • Spea spp.

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