Emission Scenario Document for Product Type 18

ECHA Introduces Emission Scenario Document for Product Type 18

The European Chemicals Agency (ECHA) released the Revised Emission Scenario Document for Product Type 18 (PT18) in December 2024. This substantial update to the 2008 OECD ESD PT18 offers critical enhancements for the environmental risk assessment of pesticides, in line with the Biocidal Products Regulation (BPR).

Background:

Directive 98/8/EC was superseded by the BPR, which requires that biocidal products and their active ingredients undergo thorough risk evaluations. The updated draft Emission Scenario Document (ESD) for Product Type 18 (PT 18) was distributed to industry associations, Member States (MS), and Working Group/Expert Group (WG/EG) members on May 2, 2024, for additional evaluation and final feedback. The remaining concerns were resolved in the WG ENV II 2024 meeting after all outstanding topics were handled and discussed following this distribution.

In September 2024, the European Chemicals Agency (ECHA) received the final draft of the updated ESD PT 18 for publication. The goal of this updated document is to offer thorough information on emission scenarios for product type 18, guaranteeing improved environmental protection and regulatory compliance.

Significant Improvements

1. With a new scale idea and improved parameters, the updated ESD offers enlarged and updated scenarios for both residential and non-residential structures. New indoor and outdoor situations that are in line with recent accords at the EU level are also included.

2. The upgrade includes improved methods for determining simultaneity factors (the chance of several applications running concurrently) and assessing wet cleaning efficiency. Notably, it incorporates a new quantitative primary poisoning evaluation and improved secondary poisoning frameworks for spray and non-spray applications.

3. The redesigned ESD includes additional chapters on Risk Mitigation Measures (RMM) and seasonal control. It also includes updated information on target organisms, active compounds, formulations, and user classifications.

These advancements in the ESD PT18 will enhance the scientific accuracy and robustness of environmental risk assessments for insecticides. This will ensure greater compliance with the

BPR and contribute to better protection of human health and the environment. The revised ESD is a valuable resource for environmental risk assessors, regulators, and industry professionals involved in the development, authorization, and use of insecticide products.

The updated ESD is an invaluable resource for environmental risk assessors, regulators, and industry professionals engaged in the development, approval, and use of insecticides.