The concern over catalyst toxicity stems from several factors:
1. Human Health Risks: Some catalysts contain heavy metals or other toxic elements that can cause serious health issues, including respiratory problems, neurological damage, and even cancer.
2. Environmental Impact: Toxic catalysts can lead to contamination of soil, water, and air. This contamination can harm wildlife and disrupt ecosystems.
3. Regulatory Compliance: Many countries have stringent regulations governing the use of toxic substances. Non-compliance can result in heavy fines and legal action.
