Behavior of glyphosate and aminomethylphosphonic acid (AMPA) in soils and water of reservoir Radeburg II catchment (Saxony/Germany) |
| |
| Authors: | Karsten Grunewald Wido Schmidt Christiana Unger Gudrun Hanschmann |
| |
| Institution: | 1. Technologiezentrum Wasser (TZW), Außenstelle Dresden, Scharfenberger Str. 152, D-01139 Dresden, Germany;2. Technische Universität Dresden, Institut für Geographie, D-01062 Dresden, Germany;3. Sächsische Landesanstalt für Landwirtschaft, Fachbereich Landwirtschaftliche Untersuchungen (LUFA), PF 221161, D-04131 Leipzig, Germany |
| |
| Abstract: | The behavior of the herbicide glyphosate and its main metabolite aminomethylphosphonic acid (AMPA) was investigated in soils and water in a well-defined catchment of the reservoir Radeburg II near Dresden (Saxony/Germany). The half-life of glyphosate in soil ranged from 11 to 17 days. Glyphosate and AMPA completely disappeared from soil after about 5 months following application of the products ”︁Roundup Ultra” and ”︁Touchdown”. The aquatic system in the test areas (surface water, soil solution, and groundwater) was not significantly affected by direct application of the compound. In general, there was a clear indication of strong sorption of the two substances by soil particles. Settlement areas were recognized as possible sources of glyphosate and AMPA intake in aquatic systems. |
| |
| Keywords: | glyphosate aminomethylphosphonic acid AMPA soil and water pollution catchment studies |
|
|
