Degradation of the (R)- And (S)-enantiomers of the Herbicides MCPP and Dichlorprop in a Continuous Field-Injection Experiment

Water Res. 2002 Sep;36(16):4160-4. doi: 10.1016/s0043-1354(02)00131-8.

Abstract

An aerobic field-injection experiment was performed to study the degradation and migration of different herbicides at trace levels in an aerobic aquifer at Vejen, Denmark. Mecoprop (MCPP) and dichlorprop monitored in a dense network of multilevel samplers were both degraded within a distance of 1 m after a period of 120 days. The study showed that no preferential degradation of the (R)- and (S)-enantiomers of MCPP and of dichlorprop took place as the enantiomeric forms of the phenoxy acids were degraded simultaneously in the aquifer.

MeSH terms

  • 2,4-Dichlorophenoxyacetic Acid / analogs & derivatives*
  • 2,4-Dichlorophenoxyacetic Acid / chemistry*
  • 2,4-Dichlorophenoxyacetic Acid / metabolism
  • 2-Methyl-4-chlorophenoxyacetic Acid / analogs & derivatives*
  • 2-Methyl-4-chlorophenoxyacetic Acid / chemistry*
  • 2-Methyl-4-chlorophenoxyacetic Acid / metabolism
  • Bacteria, Aerobic / metabolism
  • Denmark
  • Stereoisomerism
  • Substrate Specificity
  • Time Factors
  • Water Purification*

Substances

  • 2,4-Dichlorophenoxyacetic Acid
  • mecoprop
  • 2-Methyl-4-chlorophenoxyacetic Acid
  • dichlorprop