What would be considered a substantial hazard to human health or property?

A substantial hazard to human health or property is accurately identified as any hazardous material (HAZMAT). HAZMAT includes substances that, when released in the environment, pose a risk to health, safety, or property. These materials can be toxic, flammable, corrosive, or reactive and can lead to severe consequences if not managed properly. For instance, chemicals used in industrial processes, certain pesticides, and biological agents fall under this category, necessitating specific handling and disposal procedures to mitigate risks.

In contrast, ordinary cleaning products may pose some risk but are generally regarded as manageable within household use and do not classify as substantial hazards when used as intended. Common household waste, while it can have environmental impacts, typically does not reach the definition of hazardous unless it contains specific hazardous materials. Educational materials, on the other hand, are designed for teaching and learning purposes and are not associated with hazards to human health or property. Therefore, HAZMAT represents a clear and recognized threat that requires careful regulation and oversight to protect individuals and the environment.