What Contributes to Uncertainty in Risk Assessment?
Several factors contribute to uncertainty in the risk assessment of nanotechnology:
Lack of Standardization: The absence of standardized methods for characterizing and testing nanomaterials complicates risk assessments. Variability in Nanomaterials: Nanomaterials can vary widely in terms of size, shape, surface properties, and chemical composition, leading to unpredictable interactions and behaviors. Limited Toxicological Data: There is a scarcity of comprehensive toxicological data on many nanomaterials, making it difficult to predict their effects accurately. Dynamic Nature: Nanomaterials can undergo transformations in different environments, affecting their toxicity and behavior. Complex Exposure Scenarios: Assessing exposure involves understanding various pathways, including inhalation, ingestion, and dermal contact, which are often complex and interrelated.
