FDNY Hazardous Materials (Haz-Mat) Practice Exam 2025 – Your All-in-One Guide to Exam Success!

The definition of "hazardous material" encompasses a broad range of substances that can pose a risk to human health, safety, property, or the environment. This definition is inclusive of various categories of materials, which can include chemical, biological, radiological, and physical substances. The potential risks could arise from their toxicity, reactivity, corrosiveness, or other harmful properties.

By specifying that hazardous materials can affect health, safety, and the environment, the definition reflects the importance of assessing the impact of these materials in emergency response situations, industrial applications, and environmental health. This comprehensive view allows for a more effective approach in managing and responding to incidents involving such materials.

Other options may focus on specific attributes of hazardous materials, such as legal bans, toxicity, or chemical stability, but they do not capture the full breadth of what constitutes a hazardous material. The definition provided in the correct answer is more holistic, addressing the multi-faceted nature of hazards associated with various substances.