What health effects can manganese cause?
Exposure to high concentrations of manganese over the course of years has been associated with toxicity to the nervous system, producing a syndrome that resembles Parkinsonism. This type of effect may be more likely to occur in the elderly. The new manganese action level is set low enough to ensure that the potential nervous system effect will not occur, even in those who may be more sensitive. Manganese is unlikely to produce other types of toxicity such as cancer or reproductive damage.

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1. What health effects can manganese cause?
2. Is manganese of particular concern for young children?
3. How do I know if I have manganese in my water?