||Biological effects of manganese /
||Yugoslav Academy of Sciences and Arts, Zagreb. Inst. for Medical Research and Occupational Health.;Health Effects Research Lab., Research Triangle Park, N.C.
|| U.S. Environmental Protection Agency, Office of Research and Development, Health Effects Research Laboratory ; Available through the National Technical Information Service,
Industrial medicine ;
Respiratory diseases ;
Industrial plants ;
Central nervous system ;
Blood pressure ;
Occupational diseases ;
Industrial hygiene ;
Industrial atmospheres ;
Environmental surveys ;
Toxic substances ;
Biological effects ;
Air pollution effects(Humans) ;
Occupational safety and health ;
Environmental health ;
Cigarette smoking ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||xiv, 152 pages : illustrations, maps ; 29 cm.
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.
Errata slip inserted. Includes bibliographical references (pages 148-151). Microfiche.