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Neurological risks associated with manganese exposure from welding operations - a literature review.

Authors
Flynn-MR; Susi-P
Source
Int J Hyg Environ Health 2009 Sep; 212(5):459-469
NIOSHTIC No.
20036582
Abstract
Exposure to manganese dusts and fumes may cause a clinical neurological syndrome called manganism. Welders are frequently exposed to manganese-containing fumes generated by electric arcs and thermal torches. This paper reviews studies on the association between exposure to such welding fumes and neurological disease. Using the IRSST expert panel criteria, 78 cases of probable/possible, and 19 additional cases of possible occupational manganism were identified in the literature among manganese-exposed workers involved in welding processes. Epidemiological evidence linking welding exposures to Parkinson's disease is still controversial. Although more research is needed to clarify the risks of neurological impairment from welding, control measures including ventilation and adequate respiratory protection, should be implemented to minimize welding fume exposures. The significance of fume transport into the central nervous system via the olfactory nerve, which by-passes the blood-brain barrier, also needs to be assessed.
Keywords
Welders; Welding-equipment; Welding-industry; Manganese-compounds; Fumes; Neurological-diseases; Neurological-system; Central-nervous-system; Dusts; Control-methods; Author Keywords: Welding; Manganism; Parkinsons disease; MIP; Construction-trades
Contact
Michael R. Flynn, Department of Environmental Sciences and Engineering, University of North Carolina, Chapel Hill, NC 27599-7431
CODEN
IJEHFT
CAS No.
7439-96-5
Publication Date
20090901
Document Type
Journal Article
Email Address
Mike_flynn@unc.edu
Funding Type
Cooperative Agreement; Construction
Fiscal Year
2009
NTIS Accession No.
NTIS Price
Identifying No.
Cooperative-Agreement-Number-U54-OH-008307
Issue of Publication
5
ISSN
1438-4639
Priority Area
Construction
Source Name
International Journal of Hygiene and Environmental Health
State
NC; MD
Performing Organization
Center to Protect Worker's Rights
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