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DOI | 10.1007/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 |
ISSN | 0090-4341 |
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
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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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