Using REACH for the EU Environmental Footprint: Building a Usable Ecotoxicity Database, Part I

Area of Science:

• Environmental Science
• Ecotoxicology
• Chemical Risk Assessment

Background:

• The European Union Environmental Footprint (EU-EF) requires aquatic toxicity data for environmental impact assessments.
• The Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH) regulation contains extensive ecotoxicity data.

Purpose of the Study:

• To evaluate the usability of aquatic toxicity data from REACH for the EU-EF.
• To develop and present an automated method for selecting reliable ecotoxicity data.
• To identify data quality issues in the REACH database.

Main Methods:

• Developed a computerized approach to select ecotoxicity values based on quality and reliability criteria.
• Applied criteria to filter a large dataset of REACH aquatic toxicity records.
• Analyzed the characteristics of the selected and excluded data.

Main Results:

• An automated selection process excluded approximately 82% of the initial REACH ecotoxicity data.
• Exclusion was primarily due to incomplete data encoding, missing exposure details, and imprecise toxicity values.
• A final usable dataset of 54,353 records covering 9 taxonomic groups was established.

Conclusions:

• The developed method provides a valuable, curated dataset for environmental toxicity assessments.
• Significant data quality and reporting improvements are needed within REACH to enhance data utility.
• Standardizing data generation and documentation in REACH is crucial for robust environmental assessments.