Environmental Fate

The environmental fate of an agrochemical covers all of the processes by which the substance is transported and transformed in the environment. These include degradation in soil, water and sediment, adsorption onto solid materials and volatilization into the air.

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These processes can be measured and understood through the following studies

  • Physical or chemical degradation in soil, water or air (e.g. hydrolysis, photolysis)
  • Biological degradation and accumulation in soil (laboratory and field)
  • Biological degradation in water (water/sediment studies)
  • Adsorption and desorption
  • Leaching in soil (laboratory and field, lysimeter)
  • Volatilization from the plant, soil or water surface

Estimation of parameters

Data from the studies listed above are used to estimate the substance’s risk potential and for other purposes, such as calculating environmental concentrations. Here, the most important parameters are the degradation rate, DT50 or DT90,  and sorption coefficients (Kd, Koc). These parameters are determined by kinetic evaluation.

Our services with regard to environmental fate

  • Check-of-Completeness for Annex II, Section 5
  • Analysis and evaluation of the available environmental fate data
  • Study management and monitoring, report writing
  • Estimation of parameters based on environmental fate studies (individual statistics, according to FOCUS and EFSA, inverse modeling)
  • Determination of all important end-points and parameters needed for calculating environmental concentrations
  • Report writing and dossier compilation for Annex II, Section 5
Ángeles Rico Rico Managing Director
+34 91 112 60 80 +34 91 112 60 75 send mail

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