<br/>The latest United States Environmental Protection Agency investigation on domestic pesticide usage, from 2007, reports that over 1 billion pounds of pesticides are used in the country every year. Some of the most significant occurrences of groundwater contamination have been related to carbamate pesticides. However, little is known about how interactions with leaf and soil surfaces affect the fate and transport of carbamate pesticides in the environment. Sum frequency generation vibrational spectroscopy was employed to determine the interfacial interactions that regulate the binding mechanisms and surface orientation of these pollutants. We studied the influence of such interfacial structures in pesticide surface transformations on both hydrophilic and hydrophobic surfaces. The findings of this investigation will impact our understanding on how carbamates interact at different surface environments and how these interactions might influence their surface orientation, and potentially catalyze pesticide surface transformations.

Interactions of carbamate insecticides with hydrophilic and hydrophobic surfaces using surface-selective spectroscopy

2019 Spring National Meeting

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