Which step in chemical products and processes focuses on the prevention of chemical hazards?

The focus of the step that addresses the prevention of chemical hazards is centered on the concept of source reduction. This step aims to minimize the amount and toxicity of chemicals used in processes and products before they even enter the environment. By prioritizing the reduction of hazardous substances, this approach not only helps in mitigating potential risks to human health and the environment but also encourages the development of safer alternatives and processes. Implementing source reduction strategies can lead to significant reductions in chemical waste and associated hazards, which aligns with the principles of sustainability.

Other steps mentioned, such as reusing or recycling chemicals, disposing of chemicals properly, and treating chemicals to render them less hazardous, address chemical safety and risk management in different manners. They deal with actions taken after chemicals have already been introduced into a process or the environment, rather than preventing their potential hazards from occurring in the first place. Thus, while those measures are important for managing chemical safety, they do not prioritize the initial prevention of hazards as effectively as source reduction does.