How do PFAS—'forever chemicals'—enter daily life and affect human health?

Data Sources Data Point Source Kelly Calhoun, a housewife from Calhoun; daily consumption of sweet tea; self-funded blood test in 2019; neighbors and friends died of cancer FRONTLINE / AP / Atlanta Journal-Constitution joint documentary 'Contaminated: The Carpet Industry’s Toxic Legacy,' February 2026 Calhoun’s 50-year exposure: 200,000 residents drank PFAS-contaminated water; 30% higher cancer incidence Ibid.; Dalton State College’s 2008 study on PFAS levels in local water sources Dalton carpet factories sprayed PFAS across 9,600 acres of forestland; downstream contamination persists for 100 years FRONTLINE's 'Contaminated,' February 2026; Tencent News, May 2026 1938: Roy Plunkett at DuPont accidentally discovered polytetrafluoroethylene (PTFE); 1944: 'Teflon' trademark registered; used as seals in the Manhattan Project; 1961: non-stick cookware launched DuPont official corporate history; ProPublica’s series 'The Teflon Toxin' DuPont’s Teflon business annual net profit exceeding $1 billion DuPont annual reports; ProPublica investigation 1961: internal DuPont toxicology report noted enlarged livers in rats; 1981: 3M’s internal report documented 7 female workers exposed to PFAS, resulting in 2 infants born with severe birth defects; 1990: rat testicular tumors observed; 1993: cost analysis for alternatives led DuPont to decide against switching 110,000 pages of internal DuPont documents obtained by attorney Robert Bilott via court-ordered discovery in 2000; ProPublica’s 'The Teflon Toxin' 1998: 600 cattle died at Tennant Farm in West Virginia; 153 confirmed dead; linked to waste disposal site of DuPont’s Washington Works plant Ibid.; source material for the film 'Dark Waters' 2000: attorney Robert Bilott filed motion for court order compelling DuPont to disclose 110,000 pages of internal documents DeSmog long-form reporting; film 'Dark Waters' (2019) PFAS linked to thyroid cancer, kidney cancer, testicular cancer, immune dysfunction, fetal death or disability; long-chain PFAS have half-lives spanning decades NIH PubMed reviews; EPA’s PFAS Health Risk White Paper; IARC carcinogen assessment 176 million Americans’ public drinking water contains detectable PFAS; 1,050 water systems exceed safety thresholds; 52 million people affected EPA 2025 public data; Sina Kandian, May 2026 97% of Americans tested by CDC show detectable PFAS levels in blood CDC NHANES sampling data; CDC PFAS Health Brief U.S. incurs $5.7 billion annually in additional healthcare costs due to PFAS exposure Trasande team, NYU Langone School of Medicine, 'Exposure and Health,' 2023 Rome, GA: $100 million PFAS water treatment plant; Anaheim: $200 million; Calhoun: filtration facility construction began in 2024 China News Service, February 2026; Sina Kandian, May 2026; City of Rome, GA City Council resolution Rome municipal bond interest rate: 4.2%; 30-year repayment term; average monthly water bill increased from $35 to $58; share of household disposable income rose from 0.8% to 1.4% Ibid. Home reverse-osmosis system: $600 upfront; annual filter replacement: $200; blood testing per session: $300 EWG Tap Water Database; resident testimonies cited in FRONTLINE documentary DuPont founded in 1802 in Wilmington, Delaware; began purchasing PFOA from 3M in 1951 DuPont official corporate history; ProPublica’s 'The Teflon Toxin' 3M announced phaseout of PFOA in 2002; DuPont began producing and scaling up PFOA at its Fayetteville Works plant in North Carolina EPA public archives; ProPublica investigation 2005: EPA fined DuPont $16.5 million—the maximum statutory penalty allowed under federal law at the time EPA press release, December 2005 2017: DuPont settled for $671 million with 3,500 residents in Ohio and West Virginia Reuters, February 2017; ProPublica 2015: DuPont spun off Chemours (inheriting $4 billion debt and 3,500 pending PFAS lawsuits); 2019: spun off Corteva DuPont SEC Form 8-K filings; Chemours 2015 IPO prospectus 2021: liability allocation finalized: Chemours 50%, DuPont 35.5%, Corteva 14.5% Chemours 2021 announcement; SEC filings DuPont cumulative settlement payments: $671 million (2017), $40 million (Abbott case, 2020), $1.18 billion (2023), $27 million (Hoosick Falls, July 2025), $875 million (New Jersey, August 2025) Reuters; New Jersey Attorney General’s Office announcements DuPont’s largest annual revenue in recent years: $13 billion DuPont 2024 Form 10-K report UN Human Rights Council investigator statement, 2024 UN OHCHR public statement, September 2024 April 2024: Biden administration EPA issued first-ever national enforceable drinking water limits for six PFAS compounds; monitoring begins in 2027; compliance required by 2029; full enforcement effective 2031 EPA official announcement, April 2024 First new enforceable limit added to the Safe Drinking Water Act since its 1996 amendment EPA historical archives May 2025: Trump administration EPA revoked four of the six limits, retained two, and extended compliance deadline to 2031 Sigma Earth, 2025; Weidu News, May 2025; EPA press release, May 2025 December 2024: The Guardian reported EPA accelerated approval of novel short-chain PFAS for semiconductor industry use The Guardian, December 2024 Love Canal, 1942–1953: Hooker Chemical dumped 21,800 tons of chemical waste (including DDT, dioxins, hexachlorobenzene); transferred land for $1 on April 28, 1953, with liability waiver clause Economic Observer, December 2023; EPA Superfund file NYD000606947; NYT, August 3, 1978 1976: black sludge seeped into basements around school grounds; 1978: President Carter declared federal emergency; 950 households evacuated Niagara Gazette, 1976–1978 investigative reporting by Michael Brown; Carter Presidential Library emergency declaration records 1980: Comprehensive Environmental Response, Compensation, and Liability Act ('Superfund Act') established strict, joint-and-several, retroactive liability; 1995: Occidental Petroleum settled for $129 million; cleanup lasted 24 years and cost over $400 million Ibid.; EPA Superfund records General Electric PCB contamination; PG&E hexavalent chromium contamination EPA Hudson River project archives; film 'Erin Brockovich' EWG 2024 compilation of 50,000 U.S. public water systems; 320+ contaminants tracked; over 200 lacking federal enforceable limits EWG Tap Water Database 2024 Report November 2023: International Agency for Research on Cancer (IARC) classified PFAS as Group 1 carcinogens (carcinogenic to humans) IARC Monographs Volume 135 (November 2023)

Key litigation points in securities fraud misrepresentation liability disputes

Taking Beijing as an example, all first-instance cases concerning securities fraud misrepresentation liability disputes filed in the past five years fall under the jurisdiction of the Beijing Financial Court. II. Litigants (A) Plaintiffs eligible to file civil compensation claims for securities fraud misrepresentation: Investors, security holders, trustees, and asset management product managers. Investors and holders include market participants such as securities firms, fund management companies, insurance companies, trust companies, and commercial banks—as well as investment products lawfully established by these entities. (B) Liable parties III. Types of Misrepresentation IV. Loss Assessment The scope of civil compensation liability borne by information disclosure obligors is limited to plaintiffs’ actual losses directly caused by the misrepresentation, specifically including: (A) Investment differential loss (B) Commission (0.03%) and stamp duty (0.1%) attributable to the investment differential loss In securities fraud misrepresentation liability disputes, the 'Three Dates and One Price' refer to: the date of misrepresentation implementation, the date of disclosure (or correction), the benchmark date for calculating investment differential loss, and the benchmark price for such calculation. Implementation Date: The date on which the information disclosure obligor made the false statement or on which the false statement occurred. Disclosure Date: The date on which the false statement was first publicly disclosed and became known to the securities market through nationally influential media—including newspapers, radio, television, regulatory agency websites, trading venue websites, major portals, or industry-renowned self-media platforms. Benchmark Date: A cutoff date established to reasonably confine plaintiffs’ compensable losses strictly to those caused by the misrepresentation. In centralized bidding markets, the benchmark date is the day on which cumulative trading volume of the affected security reaches 100% of its freely tradable shares, commencing from the disclosure or correction date. If cumulative turnover reaches 100% of freely tradable shares within ten trading days, the tenth trading day shall serve as the benchmark date; if not reached within thirty trading days, the thirtieth trading day shall be the benchmark date. Benchmark Price: The average closing price of each trading day between the disclosure (or correction) date and the benchmark date, used as the benchmark price for loss calculation.

Chemours Faces Securities Fraud Class Action Over Refrigerant Demand Overstatement

Oct 12, 2026

Chemours Co. faces a securities class action lawsuit alleging overstatement of refrigerant aftermarket demand, resulting in a significant stock decline and guidance cut. Investors are urged to contact legal counsel to file as lead plaintiffs by December 2026.

Business Wire

Chemours Co Faces Securities Class Action Over Opteon Demand Allegations

Morningstar

2026-10-09

Chemours Company Faces Securities Fraud Class Action Over Opteon Demand Claims

2026-10-11

Chemours Faces Securities Lawsuit Over Disclosures and Guidance

2026-10-11

Chemours Company Faces Class Action Lawsuit Alleging Investor Harm

2026-10-12

Class Action Lawsuit Filed Against Chemours for Misleading Investors on Product Demand and Financial Guidance.