December 12, 2017
Thinking Beyond Regulatory Requirements Manganese is one of the most toxic metals commonly present in weld fumes. The current Occupational Safety and Health Administration (OSHA) permissible exposure limit (PEL) for manganese is 5 mg/m3 for general industry[1]. But the American Conference of Governmental Industrial Hygienists (ACGIH) and many researchers are recommending exposure limits that […]