Strategies for risk assessment and control in welding: challenges for developing countries

Area of Science:

• Occupational Health and Safety
• Industrial Hygiene
• Materials Science

Background:

• Metal arc welding encompasses manual to automated processes, with significant labor force participation and identified health risks.
• International bodies like the International Institute of Welding (IIW) emphasize improved assessment and control strategies for welding hazards.
• Developing economies often focus on basic manual welding, but increasing sophistication introduces new risks.

Purpose of the Study:

• To address the unique challenges developing countries face with adopting advanced welding technologies.
• To provide guidance on selecting optimized welding consumables and processes to mitigate health detriments.
• To present applications of occupational hygiene principles for controlling welding fume at the source.

Main Methods:

• Review of occupational hygiene principles for fume control.
• Analysis of health risks associated with various welding processes and materials (e.g., stainless steel, chromium, nickel, manganese).
• Examination of the roles of organizations like the IIW and the MFRU (Manufacturing, Research and Development Unit).

Main Results:

• Uncritical adoption of new welding technologies in developing countries can lead to significant future health problems.
• Control measures should be integrated during the design phase to prevent long-term costs and detriments.
• Guidance is needed for developing countries on selecting optimal welding consumables and processes.

Conclusions:

• Proactive selection of welding technologies and consumables is essential for developing countries to prevent occupational health issues.
• Integrating control strategies at the design stage is more effective than addressing problems reactively.
• Applying occupational hygiene principles at the source of welding fume generation is key to worker protection.