What Is A Possible Risk From Darkroom Chemicals?

What Is A Possible Risk From Darkroom Chemicals? What is a possible risk from darkroom chemicals? burns, lung problems, and cancer. Are photo chemicals toxic? Most developers are moderately to highly toxic by ingestion, with ingestion of less than one tablespoon of compounds such as monomethyl-p-aminophenol sulfate, hydroquinone, or pyrocatechol being possibly fatal for adults.