The (literal) toxic work environment is why I left welding, even though I genuinely enjoyed the work. But I was already starting to see real changes in my health, even though I was super careful about respirator use, etc. What really sealed the deal was learning that my shift lead, who I thought was a good decade older than me, was actually a few years younger, but had just been welding longer, with the body damage to show for it.
Now think of how many guys there are out there doing it with no repository protection and the good ‘ole safety squints.
BLS is combining solder/brazing with welding. And has no concept of industrial vs fab, etc.
The data shows roughly 454k workers in the welders, solderers, and brazers occupation series. With their claim of 3.5 severe injuries per 100 worker-careers, that's about 16k severe injuries. If you assume an average career is about 25 years, that's about 636 severe injuries per year, compared to the 48 fatalities per year. So it's an order of magnitude higher (which I think is the direction most people would expect).