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Toxic evaluation of manganese ore samples.

Authors
Johnson-GT; Lewis-TR; Groth-DH
Source
Cincinnati, OH: U.S. Department of Health, Education, and Welfare, Health Services and Mental Health Administration, National Institute for Occupational Safety and Health, 1972 Dec; :1-25
Link
NIOSHTIC No.
00018677
Abstract
Toxicity studies were performed to assess the occupational health hazards of a new industrial process for obtaining manganese (7439965) from low content ores. The results of these studies indicate that respirable particulates generated during the process produce granulomatous lung changes attributable to the manganese content of the particulate. Therefore, the atmospheric concentration of the manganese dusts should not be permitted to exceed the Threshold Limit Value of 5 milligrams per cubic meter established for manganese.
Keywords
Air-pollution; Contaminants; Extraction; Coatings; Respiratory-system-disorders; Necrosis; Nervous-disorders; Histopathology; Threshold-limit-value; Poisoning; Pneumonitis
CAS No.
7439-96-5
Publication Date
19721201
Document Type
Other
Fiscal Year
1973
NTIS Accession No.
NTIS Price
Identifying No.
TR-75
NIOSH Division
DLCD
Priority Area
Pulmonary System Disorders
Source Name
National Institute for Occupational Safety and Health
State
OH
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