Prediction and experimental evaluation of soil sorption by natural hormones and hormone mimics

Card, Marcella L., Chin, Yu-Ping, Lee, Linda S. and Khan, Bushra (2012) Prediction and experimental evaluation of soil sorption by natural hormones and hormone mimics. Journal of Agricultural and Food Chemistry, 60 6: 1480-1487. doi:10.1021/jf203093d

Author Card, Marcella L.
Chin, Yu-Ping
Lee, Linda S.
Khan, Bushra
Title Prediction and experimental evaluation of soil sorption by natural hormones and hormone mimics
Journal name Journal of Agricultural and Food Chemistry   Check publisher's open access policy
ISSN 0021-8561
Publication date 2012-02
Year available 2011
Sub-type Article (original research)
DOI 10.1021/jf203093d
Volume 60
Issue 6
Start page 1480
End page 1487
Total pages 8
Place of publication Washington, DC United States
Publisher American Chemical Society
Collection year 2013
Language eng
Formatted abstract
Surface runoff from manure-fertilized fields is a significant source of endocrine-disrupting compounds (EDCs) in the environment. Sorption by soils may play a major role in the environmental fate of manure-borne EDCs, including 17α- and 17β-estradiol (17α-E2 and 17β-E2), estrone (E1), melengestrol acetate (MGA), 17α- and 17β-trenbolone (17α-TB and 17β-TB), trendione (TND), and zeranol (α-ZAL). As a measure of sorption behavior, the organic carbon-normalized partition coefficients (K OC) of 17β-E2, E1, MGA, and α-ZAL were experimentally determined for three agricultural soils with initial EDC concentrations spanning from ∼0.01 to >1 μM. Sorption isotherms were linear for most solute-soil combinations. Measured K OC values were compared to those predicted using a suite of single-parameter and polyparameter linear free energy relationships (sp- and pp-LFERs). Sp-LFER models were based on experimentally determined octanol-water partition coefficients (K OW), whereas pp-LFER solute descriptors were calculated indirectly from experimentally determined solvent-water partition coefficients or the program ABSOLV. Log K OC predictions by sp-LFERs were closest to the experimentally determined values, whereas pp-LFER predictions varied considerably due to uncertainties in both solute and sorbent descriptors determined by ABSOLV or estimates using the partition coefficient approach.
Keyword Endocrine disrupting compound
Soil sorption
Growth Hormone
Linear free energy relationship
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Non HERDC
National Research Centre for Environmental Toxicology Publications
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Citation counts: TR Web of Science Citation Count  Cited 11 times in Thomson Reuters Web of Science Article | Citations
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Created: Thu, 04 Apr 2013, 11:41:59 EST by Robyne Anderson on behalf of National Res Centre For Environmental Toxicology