![]() ![]() Consistent with peer-reviewed published literature data submitted to EU regulatory agencies show that glyphosate is readily degraded in soil under standard laboratory conditions and in the field. Subsequently, AMPA is further degraded to naturally occurring substances such as carbon dioxide and phosphate. Glyphosate that reaches surface water is rapidly adsorbed to sediment and degraded to aminomethylphosphonic acid (AMPA). Studies examining the fate of glyphosate over several years found that typically, less than 1% of the glyphosate amount applied was lost as runoff from agricultural fields. ![]() For the same reason, glyphosate residues are not likely to leach into groundwater and only limited amounts of glyphosate are found in surface water as a result of runoff (concentrations are typically <100 ng l − 1). Glyphosate binds very tightly to most soils and sediments in the environment ( K oc varies between 300 and 20 000) and therefore it is generally not available for uptake by roots of nearby plants. Sites with the largest glyphosate use include soybeans, field corn, pasture, and hay. Glyphosate is one of the most widely used herbicides with applications in agriculture, forestry, industrial weed control, lawn, garden, and aquatic environments. Covaci, in Encyclopedia of Toxicology (Third Edition), 2014 Environmental Fate and Behavior of Glyphosate
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