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  1. CERCLA Hazardous Substances Defined | US EPA

    Dec 29, 2025 · There are currently about 800 CERCLA hazardous substances. In addition, there are approximately 1,500 known radionuclides, approximately 760 of which are listed individually.

  2. Hazardous Substances: A Comprehensive Guide | SafetyCulture

    Jun 25, 2025 · Hazardous substances are materials that can cause harm to humans, animals, or the environment. These substances can be found in many forms, such as chemicals, gases, liquids, and …

  3. Chemical Hazards and Toxic Substances - Overview | Occupational …

    Chemical hazards and toxic substances pose a wide range of health hazards (such as irritation, sensitization, and carcinogenicity) and physical hazards (such as flammability, corrosion, and …

  4. 40 CFR 302.4 -- Hazardous substances and reportable quantities.

    This list of CERCLA hazardous substances relies on information provided in the statutory lists that comprise the table. CASRNs are provided for convenience only to aid in the identification of the …

  5. What Is Hazardous Material? - NFPA

    Apr 15, 2022 · NFPA 400 defines hazardous material as any chemical or substance that is a physical hazard material or a health hazard material. Hazardous materials are then categorized based on the …

  6. NIOSH List of Hazardous Drugs in Healthcare Settings, 2024

    Jul 17, 2025 · This document helps healthcare employers identify drugs considered by NIOSH to be hazardous drugs.

  7. 10 Examples of Common Chemical Hazards in the Workplace ...

    This training helps you understand these standards, how to recognize the requirements of an effective GHS HazCom program and how to identify potentially hazardous chemicals — including where to …

  8. GHS Classification Summary - PubChem

    GHS includes criteria for the classification of health, physical and environmental hazards, as well as specifying what information should be included on labels of hazardous chemicals as well as safety …

  9. Dangerous goods - Wikipedia

    Dangerous goods are substances that are a risk to health, safety, property or the environment during transport. Certain dangerous goods that pose risks even when not being transported are known as …

  10. What is a hazardous substance? - The Institute for Environmental ...

    Jun 17, 2025 · A hazardous substance is any material that poses a risk to human health or the environment due to its chemical or physical properties. These substances can be solids, liquids, …