Pollutant Information: Manganese
Category: Heavy metals and base cations
Long-term exposure to high levels of manganese can result in effects on the central nervous system such as visual reaction time, hand-eye coordination and hand steadiness. Exposure to higher levels over a long period of time can result in a syndrome known as manganese. This leads to feelings of weakness and lethargy, tremors and psychological disturbances. Emission factors have been calculated for the combustion of coal and heavy liquid fuels, but emission factors are not available for many industrial processes, with the exception of iron & steel manufacture and a few other processes, where emission estimates have been based on data given in the Pollution Inventory. Between 1970 and 2005, emissions declined by 74% as a result of emission reductions by coal-fired power stations and metal industries. Emissions remained roughly constant between 2005 and 2009. Since then, emissions have increased, primarily due to a growth in the use of wood and biomass as an industrial fuel.
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