Modelling & Statistics
The calculation of concentrations of plant protection products, biocides and chemicals in general, in different environmental compartments, is of paramount importance – not only as a prerequisite from the regulatory perspective but also as a keystone in transformation, transport and environmental fate studies.
IES Ltd is highly experienced in performing environmental fate modelling, particularly higher tier studies, according to agency regulations in US, Europe, Latin America, and Asia.
We understand the underlying concepts and limitations of mathematical and stochastic modelling. Therefore, IES Ltd can provide tailored solutions to enable a more accurate representation of the physicochemical processes.
From simple descriptive statistics to complex statistical modelling, IES Ltd provide statistical services, computing skills and up-to-date knowledge on a variety of statistical methods for a wide range of applications.
The portfolio of environmental fate modelling and statistics includes:
- Use of relevant exposure modelling tools on National and European level for PEC calculations (e.g. PEARL, GEO-PEARL, PELMO, MACRO, PRZM, TOXSWA, SWAN, STEPS1-2, EVA, EXPOSIT, FROGS)
- Kinectic evaluation of laboratory soil studies, field soil dissipation studies and water/sediment studies for derivation of persistence and modelling endpoints according to current guidelines
- Higher tier GIS studies for FOCUS scenario refinements or advanced spatial modelling (e.g. higher tier drainage assessment for the UK)
- Higher tier modelling studies and specialist advice on the use of advanced modelling techniques
- Spatial and temporal data analysis
- Statistical analysis of field and laboratory experiments (e.g., time-dependent multivariate analysis, PRC)
- Estimating physicochemical properties and toxicity (QSAR), including prioritisation and ranking