Dissipation of polyoxyethylene tallow amine (POEA) and glyphosate in an agricultural field and their co-occurrence on streambed sediments

Science of the Total Environment
By: , and 

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Abstract

The environmental fate of polyoxyethylene tallow amine (POEA), an additive in glyphosate herbicide formulations, has not been studied. This study examined the dissipation of POEA; glyphosate; and aminomethylphosphonic acid (AMPA), a degradation product of glyphosate, in the top 45 cm of soil from an agricultural field where glyphosate was applied. The concentration of these compounds was also analyzed in bed sediment samples from watersheds in agricultural and urban areas from six states (Georgia, Hawaii, Iowa, Mississippi, North Carolina, South Carolina). The field studies show that POEA, glyphosate, and AMPA persist on the soil from planting season to planting season but dissipate over time with little migration into deeper soil. POEA, glyphosate, and AMPA were found on the bed sediment samples in urban and agricultural watersheds.

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Publication type Article
Publication Subtype Journal Article
Title Dissipation of polyoxyethylene tallow amine (POEA) and glyphosate in an agricultural field and their co-occurrence on streambed sediments
Series title Science of the Total Environment
DOI 10.1016/j.scitotenv.2018.04.246
Volume 636
Publication Date April 26, 2018
Year Published 2018
Language English
Publisher Elsevier
Contributing office(s) Kansas Water Science Center
Description 8 p.
First page 212
Last page 219
Country United States
State Georgia, Hawaii, Iowa, Mississippi, North Carolina, South Carolina
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