Date/Time: Wednesday, June 3, 2009/1:00 p.m.-4:00 p.m.
Arrangers: Ryan Lewis (ChemRisk, Inc., San Francisco, CA, USA); John Henshaw (Henshaw & Associates Inc., Sanibel, FL, USA)
Moderator: Alan Howe (UK H&S Laboratory, Harpur Hill, Buxton, Derbyshire, UK)
Monitors: Andrew Cutz (Health+Safety Matters & Associates, Markham, ON, Canada); Pam Dopart (ChemRisk, Inc., San Francisco, CA, USA)
Welding practices vary around the world yet the potential health effects if not properly controlled, are essentially the same. This round table will address what is known about the health effects and control technologies associated with welding practices in addition to the more controversial issues associated with manganese exposures. Manganese in welding fumes and its role as a risk factor in the development of neurological diseases is currently the subject of a global debate which has triggered thousands of product liability lawsuits in the United States.
Welding fume exposures are a growing concern in developing countries as globalization increases work-related risks and outpaces local managements' ability to protect workers due at least in part to economic constraints and technological limitations in their respective countries. Further epidemiological research, improved exposure assessment and controls, and increased employer, worker and government awareness are needed to effectively address the occupational health and liability issues surrounding welding fumes and manganese-exposed welders at an international level.
Speakers/Q&A (in the following order): 25 minutes for each presentation, 30 minutes for Q&A
1) 1:00 p.m. – 1:25 p.m.
John Meeker, MS, ScD, CIH
University of Michigan School of Public Health, Ann Arbor, MI, USA
Overview of Welding Processes, Worker Exposures and Controls with an Emphasis on Construction
2) 1:25 p.m. – 1:50 p.m.
Dallas Cowan, PhDChemRisk, Inc., Boulder, CO, USA
Toxicology and Health Effects of Manganese in Association with Occupational Exposure to Welding Fumes
3) 1:50 p.m. – 2:15 p.m.
Göran Lidén, PhD, Stockholm University, Stockholm, Sweden
The ISO Standard for Sampling behind the Welders Face Shield and the Use of
a Mini Sampler for Sampling Manganese and its Analysis by Portable XRF
4) 2:15 p.m. – 2:40 p.m.
John Oudyk, CIH, ROH
Occupational Health Clinics for Ontario Workers, Hamilton, ON, Canada
Biomarkers for Manganese Exposure in Welders
5) 2:40 p.m. – 3:05 p.m.
Jonathan Rutchik, MD, MPH
Neurology, Environmental & Occupational Medicine Associates, Mill Valley, CA, USA
Clinical Presentations of Manganese Induced Neurotoxicity
6) 3:05 p.m. – 3:30 p.m.
Brent Finley, PhD, DABTChemRisk, Inc., San Francisco, CA, USA
Welding Rod Litigation
7) 3:30 p.m. – 4:00 p.m.
Question & Answer Session