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BIOLOGICAL EFFECTS OF MANGANESE
Citation:
Saric, M. BIOLOGICAL EFFECTS OF MANGANESE. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/1-78/001 (NTIS PB277169), 1978.
Description:
The biological effects of manganese were studied in a town on the coast of Dalmatia in which a ferromanganese plant has been operating since before World War II. The study focused on the question of whether the exposure to manganese can cause a higher incidence of respiratory diseases and, if it can, at what exposure levels. The study also considered the effects of manganese on the central nervous system and on blood pressure as well as a possible catalytic effect of dust containing manganese on the conversion of sulfur dioxide in the air. The results obtained show that the rate of pneumonia is influenced by the exposure to manganese at the level of occupational exposure in the production of manganese alloys. During a 4-year follow up a higher rate of acute bronchitis was recorded at an ambient exposure to manganese at a level of one microgram per cubic meter. The study also indicates that a higher rate of chronic nonspecific lung disease can be expected in occupational exposure at this level.