Potential Role of Epigenetic Mechanism in Manganese Induced Neurotoxicity
Table 1
The table shows the major sources and routes of manganese exposure along with their relative potential for exposure to population.
Route of exposure
Source of exposure
Basis for exposure
Relative potential for exposure
Ingestion
Diet
Manganese in breast milk, infant formula, and leafy vegetables, fruit, and fruit juices
Relatively lower for general population but higher prenatal and infant exposure
Ground water Drinking water Surface water
As a natural constituent of water but elevated level may present at some water source because of pollution sources or bedrock formation
Lower
Soil
Manganese may present in soil but not a major contributor to exposure
Lower
Inhalation
Ambient air
Higher air concentration nearby industries (mining operations, metal processing plants, etc.) (MMT as additive in gasoline) is cause of concern for residential population
Higher
Indoor air
Significantly lower but associated with Mn in outdoor dust and the distance from industrial point sources
Relatively lower but implication for childhood exposure