Which hazard is associated with aluminum smoke?

Which hazard is associated with aluminum smoke?

• A. The fumes are dense, small, and sharp
• B. The fumes are harmless
• C. The smoke is blue
• D. The smoke is invisible

Answer: (A)

Aluminum welding produces aluminum oxide fumes that are extremely fine and highly irritant. Because these particles are tiny and can stay suspended in the air near the arc, they form dense, respirable smoke that the welder can inhale. The inhaled particles can irritate the eyes, nose, throat, and lungs, and with enough exposure may trigger metal fume fever–like symptoms. That’s why the hazard is described as dense, small, and sharp—small particles that are easy to inhale and irritating. The other statements aren’t accurate: the fumes aren’t harmless, they aren’t blue, and they aren’t invisible. Use proper ventilation and respiratory protection to control exposure.

Aluminum welding produces aluminum oxide fumes that are extremely fine and highly irritant. Because these particles are tiny and can stay suspended in the air near the arc, they form dense, respirable smoke that the welder can inhale. The inhaled particles can irritate the eyes, nose, throat, and lungs, and with enough exposure may trigger metal fume fever–like symptoms. That’s why the hazard is described as dense, small, and sharp—small particles that are easy to inhale and irritating. The other statements aren’t accurate: the fumes aren’t harmless, they aren’t blue, and they aren’t invisible. Use proper ventilation and respiratory protection to control exposure.