ATSDR - Toxic Substances - Manganese
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Manganese

CAS ID #: 7439-96-5

Affected Organ Systems: Cardiovascular (Heart and Blood Vessels), Hepatic (Liver), Neurological (Nervous System), Respiratory (From the Nose to the Lungs)

Cancer Effects: None

Chemical Classification: Inorganic substances

Summary: Manganese is a naturally occurring metal that is found in many types of rocks. Pure manganese is silver-colored, but does not occur naturally. It combines with other substances such as oxygen, sulfur, or chlorine. Manganese can also be combined with carbon to make organic manganese compounds. Common organic manganese compounds include pesticides, such as maneb or mancozeb, and methylcyclopentadienyl manganese tricarbonyl (MMT), a fuel additive in some gasolines. Manganese is an essential trace element and is necessary for good health. Manganese can be found in several food items, including grains and cereals, and is found in high amounts in other foods, such as tea.

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