Two layers: the regulatory floor (what statutes and regulations require) and the scientific standard (what the evidence base says about safe handling of the specific contaminants present, where that exceeds regulatory minimums). Documents the gap between the two factually and constructively.
Polychlorinated biphenyls in the electrical machinery industry: An ethnological study of community action and corporate responsibility – https://pubmed.ncbi.nlm.nih.gov/3092365/ — and related papers!!
We relied on Wayback for these reports …
https://web.archive.org/web/20240524103610/https://www.ohcow.on.ca/ge-cluster-investigation/#additional_resources