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Occurrence and fate of the herbicide glyphosate and its degradate aminomethylphosphonic acid in the atmosphere

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Chang, Feng-chih, Simcik, Matt F, Capel, Paul D·2011·Environmental Toxicology and Chemistry

Abstract

This is the first report on the ambient levels of glyphosate, the most widely used herbicide in the United States, and its major degradation product, aminomethylphosphonic acid (AMPA), in air and rain. Concurrent, weekly integrated air particle and rain samples were collected during two growing seasons in agricultural areas in Mississippi and Iowa. Rain was also collected in Indiana in a preliminary phase of the study. The frequency of glyphosate detection ranged from 60 to 100% in both air and rain. The concentrations of glyphosate ranged from <0.01 to 9.1 ng/m3 and from <0.1 to 2.5 µg/L in air and rain samples, respectively. The frequency of detection and median and maximum concentrations of glyphosate in air were similar or greater to those of the other high-use herbicides observed in the Mississippi River basin, whereas its concentration in rain was greater than the other herbicides. It is not known what percentage of the applied glyphosate is introduced into the air, but it was estimated that up to 0.7% of application is removed from the air in rainfall. Glyphosate is efficiently removed from the air; it is estimated that an average of 97% of the glyphosate in the air is removed by a weekly rainfall ≥30 mm. Environ. Toxicol. Chem. 2011; 30:548–555. © 2011 SETAC

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Metadata

Authors
Chang, F.-C., Simcik, M. F., & Capel, P. D.
Venue
Environmental Toxicology and Chemistry
Published
2011-03-01
Volume
30
Issue
3
Pages
548-555
ISSN
  • 0730-7268 (ISSN-L)
  • 1552-8618
OpenAlex
W2017268963
Cited by
171
References
1
FWCI
2.96
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Occurrence and fate of the herbicide glyphosate and its degradate aminomethylphosphonic acid in the atmosphere. https://app.cochat.ai/papers/10.1002/etc.431
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Chang, F.-C., Simcik, M. F., & Capel, P. D. (2011). Occurrence and fate of the herbicide glyphosate and its degradate aminomethylphosphonic acid in the atmosphere. Environmental Toxicology and Chemistry. https://doi.org/10.1002/etc.431

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