Pesticide evaluation: Tools


PRIMo – Pesticide Residue Intake Model

In the safety assessments of EU maximum residues levels (MRLs) for pesticides, or proposals for MRLs, the chronic and acute dietary consumer exposure to pesticide residues is estimated by using a calculation model developed by EFSA (PRIMo – Pesticide Residue Intake Model). The model is based on national food consumption figures and unit weights provided by Member States and implements internationally agreed risk assessment methodologies to assess the short-term (acute) and long-term (chronic) exposure of consumers.

The calculation model was initially developed by EFSA for the risk assessment of temporary MRLs. A revised version of the model for calculating the acute and chronic consumer exposure (revision 2) with additional features for refined intake calculations is also available. The revised PRIMo model and instructions for its use can be downloaded below.

FOCUS simulation models and FOCUS scenarios

FOCUS DG SANTE stands for “Forum for the co-ordination of pesticide fate models and their use”. With this initiative the European Commission seeks to harmonise the calculation of predicted environmental concentrations (PEC) of active substances of plant protection products (PPP) in the framework of the EU Directive 91/414/EEC. FOCUS is based on co-operation between scientists of regulatory agencies, academia and industry.
From the link below you can obtain the currently approved versions of FOCUS simulation models and FOCUS scenarios, which are used to calculate the concentrations of plant protection products in groundwater and surface water in the EU review process.

Calculation tool annexed to the guidance document on non-dietary exposure to pesticides

The guidance on the assessment of exposure of operators, workers, residents and bystanders to pesticides sets out for the first time a harmonised methodology. It also presents a tool for calculating non-dietary exposure to pesticides for all these groups. 
From the link below you can consult the guidance document and the annexed calculator tool. The tool draws on available data to help risk assessors and applicants carry out exposure assessments. Following the input of key data the calculator provides real-time estimates of non-dietary exposure under specific conditions of use for each of the four population groups.

Calculation tool annexed to the guidance on risk assessment of plant protection products on bees

The guidance document on risk assessment of plant protection products on bees provides guidance for applicants and authorities.  It suggests a tiered risk assessment scheme with a simple and cost-effective first tier to more complex higher tier studies under field conditions. Each of the tiers has to ensure that the appropriate level of protection is achieved.

Together with the bee guidance document, EFSA has developed a tool to perform the calculations that are required for the screening step and the first tier.