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DOI10.1007/s00244-015-0183-2
Pesticide Uptake Across the Amphibian Dermis Through Soil and Overspray Exposures
Van Meter, Robin J.1; Glinski, Donna A.2; Henderson, W. Matthew3; Garrison, A. Wayne3; Cyterski, Mike3; Purucker, S. Thomas3
发表日期2015-11-01
ISSN0090-4341
卷号69期号:4页码:545-556
英文摘要

For terrestrial amphibians, accumulation of pesticides through dermal contact is a primary route of exposure in agricultural landscapes and may be contributing to widespread amphibian declines. To show pesticide transfer across the amphibian dermis at permitted label application rates, our study was designed to measure pesticide body burdens after two simulated exposure scenarios. We compared direct exposures, where amphibians were present when spraying occurred, to indirect exposures, where amphibians were exposed to soils after pesticide application. During summer 2012, we reared barking (Hyla gratiosa) and green treefrogs (H. cinerea) through 60-90 days post-metamorphosis at a United States Environmental Protection Agency research laboratory. We tested exposure for 8 h to five pesticide active ingredients (imidacloprid, atrazine, triadimefon, fipronil, or pendimethalin) in glass aquaria lined with soil in the laboratory. We quantified total pesticide body burden and soil concentrations using liquid chromatography-mass spectrometry. All individuals in both treatments had measurable body burdens at the end of the study. A randomized block design analysis of variance (n = 18) showed that body burdens (p = 0.03) and bioconcentration factors (BCFs) (p = 0.01) were significantly greater in the direct overspray treatment relative to the indirect soil spray treatment for both species and tested pesticides. BCFs ranged from 0.1 to 1.16 and from 0.013 to 0.78 in the direct and indirect treatments, respectively. Our study shows dermal uptake for multiple pesticides from both direct spray and indirect soil exposures and provides empirical support for the degree to which terrestrial phase amphibians have higher body burdens after overspray pesticide exposure.


语种英语
WOS记录号WOS:000362666700017
来源期刊ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
来源机构美国环保署
文献类型期刊论文
条目标识符http://gcip.llas.ac.cn/handle/2XKMVOVA/58813
作者单位1.US EPA, Oak Ridge Inst Sci & Educ, Athens, GA 30613 USA;
2.US EPA, Student Serv Author Contractor, Athens, GA 30605 USA;
3.US EPA, Ecosyst Res Div, Athens, GA 30605 USA
推荐引用方式
GB/T 7714
Van Meter, Robin J.,Glinski, Donna A.,Henderson, W. Matthew,et al. Pesticide Uptake Across the Amphibian Dermis Through Soil and Overspray Exposures[J]. 美国环保署,2015,69(4):545-556.
APA Van Meter, Robin J.,Glinski, Donna A.,Henderson, W. Matthew,Garrison, A. Wayne,Cyterski, Mike,&Purucker, S. Thomas.(2015).Pesticide Uptake Across the Amphibian Dermis Through Soil and Overspray Exposures.ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY,69(4),545-556.
MLA Van Meter, Robin J.,et al."Pesticide Uptake Across the Amphibian Dermis Through Soil and Overspray Exposures".ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 69.4(2015):545-556.
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