Terrestrial Field Dissipation / Accumulation Studies

Field dissipation studies are a key data requirement for the registration of plant protection products according to Commission Regulation (EU) No. 283/2013 and in accordance with Regulation (EC) No. 1107/2009.

Soil dissipation studies allow the estimation of the time required to dissipate half (50%) and 90% of an active ingredient as well as the time required to degrade half (50%) and 90% of the same active ingredient under field conditions.

With EAS being GLP compliant, our team of experts are able to conduct GLP field dissipation studies (multi-sites studies) under natural conditions. Our experienced Study Directors (SDs) and Principal Investigators (PIs) work together and monitor studies to ensure they are compliant with GLP requirements (OECD No. 6, 1999 & OECD No. 13, 2002).

With numerous field stations throughout Northern and Southern Europe, soil dissipation and soil accumulation studies can be conducted on representative agricultural soils to meet regulatory requirements for product registration.

In addition, our experts are able to conduct a Kinetics Evaluation for field dissipation studies (TFDs) to obtain degradation rate parameters (DT50, DegT50matrix values) of active substances of plant protection products and their transformation and reaction products in soil.
The DT50, DegT50 of pesticide active substances and their transformation and reaction products in soil provides critical information used in risk assessments for plant protection products according to Regulation EC No 1107/2009 of the European Parliament and the Council.

Complementing field dissipation and accumulation studies, our experts can also conduct a non-GLP soil taxonomy assessment for field sites accordance with the United States Department of Agriculture Natural Resource Conservation Service (USDA-NRCS) Soil Taxonomy system.