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  1. Cyanide | Chemical Emergencies | CDC

    Sep 6, 2024 · Cyanide is a fast acting and potentially deadly chemical. Signs and symptoms of ammonia exposure depend on how much you were exposed to. Get away from the area, get clean, and get …

  2. Outbreak Linked to Morel Mushroom Exposure — Montana, 2023

    Mar 14, 2024 · Abstract During March–April 2023, a total of 51 persons reported mild to severe gastrointestinal illness after eating at restaurant A in Bozeman, Montana. The outbreak resulted in …

  3. Poisonous Plants and Work | Outdoor | CDC

    Mar 3, 2026 · Types Identifying poisonous plants The old saying “Leaves of three, let it be!” is a helpful reminder for identifying poison ivy and poison oak. However, it does not apply to poison sumac, …

  4. Carbon Monoxide Poisoning Basics | Carbon Monoxide Poisoning | CDC

    Jan 12, 2026 · Carbon monoxide (CO) is an odorless, colorless gas that can cause sudden illness and death if inhaled. Find quick facts about CO poisoning and what can be done to prevent it.

  5. Strychnine | Chemical Emergencies | CDC

    Sep 6, 2024 · Background Strychnine is a strong poison. Only a small amount is needed to cause serious effects in people. Strychnine poisoning can cause extremely serious negative health effects, …

  6. Phosgene | Chemical Emergencies | CDC

    Sep 6, 2024 · Phosgene is a toxic gas or liquid that can cause damage to the skin, eyes, nose, throat, and lungs. Signs and symptoms depend on how the amount of phosgene, how the person was …

  7. Carbon Monoxide Hazards at Work | Carbon Monoxide | CDC

    Sep 30, 2024 · Carbon monoxide (CO) is a poisonous gas that can harm or kill workers. Employers, workers, and equipment users can take precautions to prevent CO poisonings.

  8. Tetrodotoxin: Biotoxin | NIOSH | CDC

    Tetrodotoxin is an extremely potent poison (toxin) found mainly in the liver and sex organs (gonads) of some fish, such as puffer fish, globefish, and toadfish (order Tetraodontiformes) and in some …

  9. Poisonings, Envenomations, and Toxic Exposures During Travel

    Apr 23, 2025 · Learn how to educate international travelers about toxic plants, animals, and chemicals.

  10. NIOSH Fast Facts: Protecting Yourself from Poisonous Plants

    Poisonous plants, from left to right: poison ivy, poison oak, poison sumac. Images courtesy of U.S. Department of Agriculture. Protect Yourself Wear long sleeves, long pants, boots, and gloves. Wash …