Hazardous materials are substances that can pose a risk to health, safety, or the environment. These materials can be chemical, biological, or physical in nature and may cause harm through exposure, ingestion, or environmental contamination. Common examples include toxic chemicals, flammable liquids, and radioactive materials. Proper handling and disposal of hazardous materials are essential to prevent accidents and protect public health. Regulations often require labeling, storage, and transportation guidelines to ensure safety. Organizations that deal with hazardous materials must follow strict protocols to minimize risks and comply with laws set by agencies like the Environmental Protection Agency (EPA).