What defines "hazardous waste"?

The definition of "hazardous waste" is centered on its potential danger to human health and the environment. Hazardous waste includes any waste that possesses harmful properties, making it potentially dangerous for people or the ecosystem. This includes substances that can be toxic, ignitable, corrosive, or reactive.

In contrast, waste produced in large quantities may not necessarily pose a hazard; for instance, certain large-scale production wastes can be non-toxic and environmentally safe. Reusable waste can also be non-hazardous if it is repurposed or recycled safely. Additionally, the ability to incinerate waste does not inherently mean it is hazardous; many materials are designed specifically for incineration and are safe for the environment when disposed of properly.

The correct choice captures the essence of hazardous waste as being characterized by its potential risks rather than its quantity, reusability, or disposal method.