Internal studies and other documents show that 3M knew by the 1970s that PFOA and PFOS were toxic and accumulating in people's blood.
3M reaches $10.3 billion settlement over contamination of water systems with 'forever chemicals
3M, others reach $65 mln deal with NY town over PFOA in drinking water
Raincoats Without Toxic PFAS Chemicals Are Coming - Bloomberg
5@5: Hy-Vee opens expanded HealthMarket
PFAS Manufacturers Hid the Risks
PFAS History, Threat to Health, and Pathways to Ingestion
3M documents show company knew of PFAS dangers for decades
3M Is in Hot Water Again Over PFAS 'Forever Chemicals
Companies deny responsibility for toxic 'forever chemicals' contamination, US news
Guideline levels for PFOA and PFOS in drinking water: the role of scientific uncertainty, risk assessment decisions, and social factors