Engineered nanomaterials: exposures, hazards, and risk prevention.

Area of Science:

• Nanotechnology
• Occupational Health and Safety
• Risk Assessment

Background:

• Engineered nanomaterials (ENMs) are increasingly used across academic and industrial sectors.
• Understanding of occupational health and safety (OHS) aspects of ENMs is nascent and incomplete.
• Existing literature on ENM safety is often unverified or over-interpreted.

Purpose of the Study:

• To review the current state of knowledge regarding ENMs and their occupational health and safety.
• To outline major exposure routes, potential adverse effects, and assessment methods for ENMs.
• To discuss strategies for minimizing exposure and health hazards within a Risk Assessment/Risk Management framework.

Main Methods:

• Literature review of engineered nanomaterials (ENMs), applications, and workforce exposure.
• Analysis of reported human exposure routes, uptake, and adverse effects.
• Examination of occupational exposure assessment data and control strategies (e.g., engineering controls, PPE).

Main Results:

• Significant gaps exist in understanding ENM toxicity and long-term health effects.
• Information on occupational exposure assessment for ENMs is limited.
• Effectiveness data for current exposure control measures is often lacking.

Conclusions:

• Current recommendations for ENM safety rely heavily on general principles, analogy to ultrafine materials, and common sense due to data scarcity.
• A systematic Risk Assessment/Risk Management approach is crucial for addressing ENM health hazards.
• This review serves as a foundational guide for establishing safe work environments involving ENMs, particularly for smaller organizations.