Qingdao Municipal Center for Disease Control and Prevention, Qingdao, China
(Department of Occupational Health)
2
Drexel University School of Public Health, Philadelphia, USA
(Department of Environmental and Occupational Health)
CORRESPONDING AUTHOR
Arthur L. Frank
Drexel University School of Public Health, Department of Environmental and Occupational Health, 3215 Market Street, 7th Floor,
Philadelphia, PA 19104, USA
Objectives: To document if manganese from welding causes health effects including neurological symptoms associated with
manganese exposure. Material and Methods: An anonymous questionnaire survey for a total of 505 welders at 3 welding
facilities in Qingdao City, China was administered and analyzed. Results: Numerous symptoms were reported by the welders
including difficulty with eyes for 43% of them, sore throat for 30% of them, and tremors were reported by over 18%
of them. Tremors were associated with longer periods of work as a welder and correlated with the relative cleanliness
at the 3 different facilities. Tremors did not correlate with smoking. Conclusions: Manganese-exposed welders reported
a variety of symptoms related to work and showed neurological disturbances that correlated with amount of exposure. Int
J Occup Med Environ Health 2017;30(2):241–247
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