Yeah and anyway didn’t Atget supposedly stand develop with glycin? Problem solved. 

Oh gosh, A couple years ago PBS ran a fascinating documentary on just how dangerous Victorian/Edwardian era homes were due to naivety about household chemicals, indiscriminate bottle labeling, the toxicity of common colorants even in wallpaper, the arrival of electrical hazards, etc. It's hard to imagine that houses in Paris in Atget's era didn't have comparable risks. Even earlier, some surmise that the premature death of Napoleon during his exile was due to the toxicity of the curtain dye where he was confined. And look at what kinds of nasty chemicals many early photographers were routinely exposed to. It wasn't just hatters who went mad from mercury fuming. Even surgeons didn't wear gloves or sterilize anything; do you want to return to that? People live longer on average these days for a reason, at least during peacetime.