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

被引：13

作者：

Venne, Louise S. ^{[3
]}

Anderson, Todd A. ^{[3
]}

Zhang, Baohong ^{[1
]}

Smith, Loren M. ^{[2
]}

McMurry, Scott T. ^{[2
]}

机构：

[1] E Carolina Univ, Dept Biol, Greenville, NC 27858 USA

[2] Oklahoma State Univ, Dept Zool, Stillwater, OK 74078 USA

[3] Texas Tech Univ, Inst Environm & Human Hlth, Dept Environm Toxicol, Lubbock, TX 79409 USA

来源：

BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY | 2008年 / 80卷 / 06期

关键词：

Bufo cognatus; great plains toad; spadefoot toad; Spea spp;

D O I：

10.1007/s00128-008-9457-y

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

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, alpha- and beta-BHC, gamma-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.

引用

页码：497 / 501

页数：5

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