Mercury toxicity and treatment: A review of the literature. Toxic effects of mercury on the cardiovascular and central nervous systems. You can learn more about how we ensure our content is accurate and current by reading our editorial policy. We link primary sources - including studies, scientific references, and statistics - within each article and also list them in the resources section at the bottom of our articles. Medical News Today has strict sourcing guidelines and draws only from peer-reviewed studies, academic research institutions, and medical journals and associations. To prevent mercury poisoning, fishing has been prohibited in more than 3,000 lakes in the U.S. Tuna, swordfish, and shark are more likely than other varieties to contain high concentrations of mercury. It is possible to get mercury poisoning by eating contaminated fish. Volcanic activity can cause mercury to enter the water, where it becomes methylmercury, and contaminate fish. Mercury is a naturally occurring element in the Earth’s crust. However, the Food and Drug Administration (FDA) state that these types of fillings are safe, starting at 6 years of age.Īlso, a person might be exposed to mercury through broken thermometers or blood pressure monitors.Ī person may also be exposed to mercury at work, such as in factories or workshops that produce batteries, lamps, or light bulbs. If a person has a cavity, a dentist may fill it with amalgam - a mixture of metals that contains mercury.Īccording to a 2012 review, each filling releases up to 28 micrograms of mercury a day, and the body absorbs 80% of this. The three most common sources of exposure to mercury are: Organic: A person can be exposed to mercury in their diet.Inorganic: A person may be exposed through their job or through contact with mercury in dental fillings or cosmetics, for example.The World Health Organization (WHO) explain that exposure to mercury may be:
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