Manganese can cause pulmonary toxicity if inhaled.
Route of exposure: inhalation of manganese fumes
Occupations: welders, artisans, foundry workers
Clinical findings:
(1) dyspnea
(2) bronchitis
(3) pneumonitis
(4) reduced pulmonary function tests
Risk factors:
(1) poor ventilation
(2) lack of personal protective equipment
(3) frequent engagement in manganese fume generating activities
