Despite the advanced techniques available, regular monitoring faces several challenges:
1. Complexity of Nanomaterials: The diverse and complex nature of nanomaterials makes it difficult to develop a one-size-fits-all monitoring approach. 2. Standardization: There is a lack of standardized methods for monitoring and assessing nanomaterials, making it hard to compare results across studies. 3. Instrumentation Costs: High-end instruments required for monitoring can be expensive and require specialized training to operate. 4. Data Management: The vast amount of data generated during monitoring needs to be efficiently managed and interpreted.