What is a characteristic of items classified as hazardous waste?

Items classified as hazardous waste are characterized by their potential to pose a threat to human health and the environment if not managed appropriately. This classification includes substances that can be toxic, ignitable, corrosive, or reactive. Such properties require strict management and disposal procedures to mitigate risks associated with exposure, contamination, or accidents.

The other options do not accurately represent characteristics of hazardous waste. For instance, while some hazardous materials may be recyclable, the ease of recycling does not define their hazardous nature. Non-toxic items, by definition, would not qualify as hazardous waste. Additionally, while some hazardous materials can indeed be found in common household products, this trait alone does not capture the critical aspect of their hazardous nature, which is the potential risk they pose if not properly handled.