Poisonous Plants and Work | Outdoor | CDC 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, which usually has clusters of 7–13 leaves In some species, poison ivy and poison oak may also have more than three leaves Their appearance may also vary depending upon the species, the local
Cyanide | Chemical Emergencies | CDC 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 medical care if exposed
Venomous Snakes at Work | Outdoor | CDC Venomous snakes can be dangerous to outdoor workers Although most people do not die from snake bites, there can be lasting effects Employers and workers can take actions to stay safe
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 exposed clothing separately in hot water with detergent Barrier skin creams, such as lotion containing bentoquatum, may offer some protection
Symptoms of Food Poisoning | Food Safety | CDC The most common symptoms of food poisoning include diarrhea, stomach pain or cramps, nausea, vomiting, and fever Signs of severe food poisoning include bloody diarrhea, diarrhea that lasts more than 3 days, fever over 102°F, vomiting so often that you cannot keep liquids down, and signs of dehydration
Strychnine | Chemical Emergencies | CDC 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, including death Strychnine is a white, odorless, bitter crystalline powder It can be taken by mouth, breathed in, or mixed in a solution and given intravenously (injected directly into a vein)
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 amphibian, octopus, and shellfish species
Ricin | Chemical Emergencies | CDC Ricin is a natural poison that can harm the body Signs and symptoms of ricin poisoning depend on whether ricin was breathed in, swallowed, or injected If you were exposed, get medical care