Key principles and operational practices for improved nanotechnology environmental exposure assessment

Area of Science:

• Nanotechnology
• Environmental Science
• Risk Assessment

Background:

• Nanotechnology is a key enabling technology with broad economic and societal potential.
• Sustainable nanotechnology necessitates a science-based risk governance framework.
• Environmental risk assessment (ERA) for nanomaterials should align with conventional chemical assessment methods.

Purpose of the Study:

• To present developing knowledge, practical considerations, and key principles for exposure assessment of engineered nanomaterials.
• To support regulatory and research applications in nanotechnology risk assessment.
• To ensure alignment and avoid duplication with existing chemical assessment frameworks.

Main Methods:

• Developing a tiered approach for exposure assessment, applicable to both nano-specific and conventional chemicals.
• Reviewing existing knowledge and practical considerations for nanomaterial exposure assessment.
• Identifying key principles for robust environmental risk assessment.

Main Results:

• A tiered approach to exposure assessment is beneficial for nano-specific ERA.
• Alignment with conventional chemical assessment methods is crucial for efficiency.
• Key principles for exposure assessment of engineered nanomaterials have been identified.

Conclusions:

• Effective exposure assessment is vital for sustainable nanotechnology.
• A harmonized approach to ERA strengthens innovation and safety.
• The presented principles support regulatory and research applications for engineered nanomaterials.