Manganese in Welding Fume: Sources and Controls

Earn 2 Contact Hours

Sponsored by the Construction Committee

This webinar describes common welding and thermal cutting processes associated with Manganese (Mn) exposures. Suggestions for improving the quality of monitoring data and prioritizing exposure assessments are provided. Ventilation techniques and respiratory protection options will also be described. Terminology used in the welding industry is incorporated throughout the webinar as a means of familiarizing participants with the vocabulary used in the workplace. 


Planning on Group Training with additional participants?

Please note AIHA's eLearning Program will require the submission of an online evaluation and $35 processing fee for any additional participant seeking credit.

Learning Outcomes

Upon completion, participants will be able to:​​

  • Anticipate circumstances during welding and thermal cutting that can result in Mn overexposures.

  • Develop an exposure assessment strategy for welding and thermal cutting 

  • Recognize and recommend effective ventilation/respiratory protection for control of welding fume.

Presenter: Michael K Harris, PhD, CIH

Mike Harris received an earned research Doctorate from Louisiana State University in 1979 and is President of Hamlin & Harris, Incorporated in Baton Rouge, Louisiana. 

In 2003, his book, Welding Health and Safety: A Field Guide for the OEHS Professional was selected as Critics' Choice for best non-committee AIHA publication.  

His welding experience includes:

  • Teaching aircraft welding at the US ARMY Transportation School.

  • Welding environmental test equipment for Ling Electronics

  • Welding aircraft drop tanks at Royal Industries

  • Welding  pressure vessels for nuclear submarines at Aerojet General

Mike is the 2014 recipient of the Donald E Cummings Memorial Award.

Important Certification Information

This Webinar will award CM credit hours and contact hours. CEU credits will not be awarded for participating in this webinar. The eLearning Program works with our accrediting bodies to insure compliance with all policies and (ANSI) standards. AI​​HA's eLearning Program requires any participant seeking credit to submit a course evaluation.

Education Tra​nscripts are updated continuously and available for download from AIHA’s website. Please allow 2-3 weeks after submitting an evaluation for education transcript processing. You will be notified by an automated email when your transcript is updated with course credit.

If you have further questions regarding course credit for participation, please feel free to contact us.​​​​