What are the health risks of mercury poisoning?

Mercury poisoning is a form of metal poisoning caused by exposure to various forms of mercury, including metal, vapor, salts, and organic compounds. Exposure can severely impact the nervous system, immune system, and kidneys, leading to symptoms like muscle weakness, poor coordination, and memory problems. Historically and currently, handling toxic compounds like dimethylmercury or mercuric chloride poses extreme occupational hazards.

What we know

• Exposure to mercury and its organic compounds is toxic to the human nervous system, immune system, and kidneys. [4]
• Symptoms of mercury poisoning include muscle weakness, poor coordination, numbness, skin rashes, anxiety, and memory problems. [2]
• Dimethylmercury is an extremely potent neurotoxin where less than 0.1 mL can induce severe poisoning resulting in death. [3]
• Mercury(II) chloride is a very toxic inorganic chemical compound of mercury and chlorine historically used as a laboratory reagent and syphilis treatment. [5]

Still open

• The effects of long-term exposure to methylmercury at very low doses remain unclear.
• The benefit of chelation therapy for individuals with long-term mercury exposure is unclear.

Where to go next

• how it workedHow does dimethylmercury affect the body?
• the bigger pictureWhat are the common symptoms of metal poisoning?
• a case in pointHow was mercury(II) chloride used to treat syphilis?
• what followedWhat treatments exist for acute heavy metal exposure?
• what caused itWhere does natural mercury come from in the environment?
• an unexpected connectionHow do dental fillings relate to mercury exposure?Amalgam-based dental fillings serve as a recognized source of human mercury exposure alongside industrial and laboratory hazards.

Sources

• [1]mercury poisoning (Wikidata Q408089) · CC0 1.0
• [2]Mercury poisoning · CC BY-SA 4.0
• [3]Dimethylmercury · CC BY-SA 4.0
• [4]Mercury (element) · CC BY-SA 4.0
• [5]Mercury(II) chloride · CC BY-SA 4.0