I was reading some older posts in this thread about hazards of stripping paint using physical methods (wire wheel, etc.) I recently stripped two bumper extensions which were in rough shape with multiple layers of paint but also rust in multiple places. I stripped them down outside using an angle grinder and wire wheel. There was a breeze to carry most dust away. Am I going to die of cancer or silicosis? I'm only partly kidding.
It didn't smell great when I was grinding but I figured I was outdoors and no big deal. I'm done having kids so the lead isn't as big of a concern.
P.S.. I primed it and then painted with Rapco 383 green and it looks great.