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March 16, 2021

EFSA Begins Public Consultation on Draft Updated Guidance on Assessing the Exposure of Operators, Workers, Residents, and Bystanders in Risk Assessment for Plant Protection Products

Carla N. Hutton

The European Food Safety Authority (EFSA) announced on March 15, 2021, that it has begun a public consultation on a draft updated Guidance on the assessment of exposure of operators, workers, residents, and bystanders in risk assessment for plant protection products (PPP).  According to EFSA, the Guidance is designed to assist risk assessors and applicants when quantifying potential non-dietary, systemic exposures as part of the regulatory risk assessment for PPPs.  The Guidance is based on the Scientific Opinion on “Preparation of a Guidance Document on Pesticide Exposure Assessment for Workers, Operators, Residents and Bystanders” developed by the EFSA Panel on Plant Protection Products and their Residues (PPR) in 2010.  EFSA states that highlighting some inconsistencies between the approaches adopted by regulatory authorities, the PPR Panel proposed a number of changes to the practices in use (i.e., use of deterministic methods for individual PPPs; need to perform an acute risk assessment for PPPs that are acutely toxic; use of appropriate percentile for acute or longer term risk assessments).  In the first version of the Guidance, issued in 2014, EFSA included several scenarios for outdoor uses, with an annexed calculator, as well as recommendations for further research.  EFSA has updated the Guidance in 2021 to include additional scenarios and revise default values on the basis of the evaluation of additional evidence.  To support users in performing the assessment of exposure and risk, EFSA further developed an online calculator that reflects the Guidance content.  Comments on the draft updated Guidance are due May 9, 2021.  EFSA will assess all comments submitted in line with the specified criteria.  The relevant EFSA Panel will further consider the comments and take them into consideration if found to be relevant.