From your own ‘growing body of scientific studies
Some studies have found a significant association between cadmium/lead levels and various cancers; however, no conclusive results could be extracted since other studies have not found any relationship. Further large-scale epidemiologic and experimental studies are warranted to provide insight on heavy metal toxicity in human.
Yet another load of regurgitation

No new scientific study just a review of existing stuff that warrants (in their opinion) more money being spent to investigate……..& keep them in a job

Latest study quoted is 2019 but also quoting stuff from 1996 - regurgitation in the finest

Heavy metals via water pipes in Pakistan & in the atmosphere within industrial area’s of china………..
For those who are concerned about lead ammunition I suggest your time would be better served waving your placards there to deal with those contaminates