What does the fourth step in chemical products and processes entail?

The fourth step in chemical products and processes typically focuses on proper disposal of chemicals. This step is vital as it ensures that hazardous chemical waste is handled responsibly to minimize environmental impact and protect human health. Proper disposal involves following regulations and best practices for safely getting rid of chemicals that can no longer be used or are no longer needed.

Effective disposal methods prevent the release of harmful substances into the environment, which can contaminate soil, water, and air, potentially leading to harmful ecological effects and public health issues. This step is often reinforced by regulatory frameworks that govern how chemicals must be disposed of, emphasizing not only the safety of individuals but also the sustainability of ecosystems.

In contrast, the other options revolve around preventing or mitigating chemical risks rather than directly addressing the final step of managing chemicals that are at the end of their life cycle. These include strategies like treating chemicals to make them less hazardous, preventing chemical hazards in the first place through source reduction, and engaging in reuse or recycling initiatives, which are all significant steps but occur prior to the actual disposal process.