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.
Between 1990 and 2022, emissions have increased by 12.5%. In 2022, 49% of manganese emissions came from industrial combustion of biomass and wood.