A poisoning incident affecting 99% of humanity

In 1991, DuPont scientists established an internal safety limit for PFOA concentration in drinking water: one part per billion. Yet that same year, DuPont discovered that the PFOA level in the water supply of one area was three times this safety threshold. The information remained undisclosed. Over the past several decades, DuPont had indeed voluntarily provided health-related data on PFOA to the U.S. Environmental Protection Agency (EPA). When attorney Robert Bilott requested evidence, DuPont handed him two letters—written between 1982 and 1992—to West Virginia state agencies. Both cited internal research reports revealing PFOA’s harmful effects on humans. In fact, numerous employees developed cancer due to PFOA exposure, and cases of babies born with birth defects were documented. Bilott discovered that as early as the 1990s, DuPont had already known PFOA caused testicular, pancreatic, and liver cancers in laboratory animals. One lab study indicated PFOA exposure could cause severe DNA damage; another staff study linked PFOA directly to prostate cancer. Because products manufactured using PFOA generated $1 billion annually for DuPont, many proposed safety improvements were rejected by senior management. Initially, Bilott had taken on the case solely to represent Wilbur Tennant—the farmer whose cattle were dying—and to protect his own hometown community. But by this point, he gradually realized his work was far more consequential—and far more perilous. Teflon-coated non-stick cookware containing PFOA and PFOS had long been ubiquitous worldwide; everyone was unwittingly affected. Delivering a decisive blow to DuPont and forcing meaningful change seemed nearly impossible. During this process, Tennant passed away. Bilott, consumed by the case for years, grew estranged from his family and lived in constant fear of assassination or retaliation. His law firm even temporarily withdrew support, leaving him utterly isolated. Yet once he learned that these hazardous chemicals were harming every single person on Earth, he knew he could not back down. In August 2001, Bilott filed a class-action lawsuit on behalf of approximately 70,000 residents of West Virginia and Ohio who had consumed PFOA-contaminated drinking water. The case settled in September 2004, with collective benefits exceeding $300 million. DuPont agreed to fund an independent scientific panel to study the affected water districts and paid $70 million to install filtration systems across six impacted public water systems and dozens of contaminated private wells. Additionally, DuPont committed up to $235 million for future medical monitoring. Thanks to Bilott’s efforts, the dangers of PFOA and PFOS attracted widespread attention across Europe and North America, and news coverage surged. In 2017, Bilott secured a $671 million settlement on behalf of more than 3,500 plaintiffs. In 2018, Bilott proposed nationwide blood testing to detect these two hazardous chemicals in the general population. He also initiated new lawsuits against multiple manufacturers—including 3M and DuPont—a legal campaign that continues to this day. Thus, a lawyer and a farmer together exposed the truth behind the largest poisoning case in history. Yet while this truth has spread, regulatory oversight of these two hazardous chemicals remains woefully inadequate. 03 The tragedy continues What is the situation in China regarding substances containing carbon–fluorine bonds (i.e., PFAS)?

From establishing a gunpowder factory in 1802 to becoming a 20th-century chemical giant, DuPont not only invented nylon and Teflon but also became a focal point of controversy over environmental pollution issues. Let us jointly review the rise and fall of this legendary enterprise.

DuPont’s environmental problems extended far beyond a single product. By the 1980s, ecological risks embedded throughout its supply chain had become increasingly apparent. Chlorofluorocarbons (CFCs) were among the primary substances depleting the ozone layer. As scientific understanding deepened, their severe environmental hazards became widely recognized by researchers. DuPont was one of the main producers of CFCs, whose applications spanned refrigerators and air-conditioning systems. Chemical pollution severely damaged rivers and groundwater. Multiple incidents surfaced across China and elsewhere involving contamination near DuPont chemical plants—so severe that fish caught by local fishermen were deemed unsafe for consumption. In cases of hazardous waste leakage, uncontrolled factory discharges led to discoloration of nearby residents’ teeth—turning smiles into awkward, polymer-tinged grimaces. DuPont thus became a prime target of public criticism in environmental circles. Faced with crisis, DuPont did not stand idly by. Instead, it launched a dual-track strategy of corporate transformation and ethical repositioning: establishing an Environmental Affairs Department; advancing environmental reporting, carbon-emission planning, and alternative-materials research; participating in the Montreal Protocol to phase out CFCs; actively developing new eco-friendly refrigerants; and gradually exiting high-risk business areas—including halting development of certain pesticides and chemical additives. It launched high-profile campaigns promoting green-tech investments—such as biodegradable materials, clean energy, and eco-packaging—in an effort to rebuild its public image. Yet public memory remained sharp; lawsuits continued; and related films and documentaries kept the controversies alive. No matter how vigorously DuPont ‘greened’ its branding, it could not fully obscure its controversial legacy. Entering the 21st century, DuPont resembled a superhero grappling with midlife crisis—reflecting deeply on past decisions while repeatedly restructuring operations, rebranding, and pursuing mergers and acquisitions. At the outset of its transformation, DuPont adopted three core strategies: divesting polluting businesses, retaining profitable ones, and—if neither option proved viable—merging with peers to sustain corporate continuity. Thus began a sweeping corporate reorganization for this polymer-industry titan, rendering its financial structure ever more complex. Its first major step involved shedding highly polluting, high-risk, low-return businesses. Key examples include: spinning off its renowned coatings division in 2004 to form Axalta Coating Systems, focused on automotive paints—aimed at avoiding environmental fines; and in 2015, spinning off its contentious chemical business into a new entity, which later faced massive liabilities stemming from the C8 contamination litigation. This series of asset divestitures was dubbed by industry observers “the most precise legal scalpel.” DuPont’s strategic logic was clear: isolate environmental liabilities and historical burdens from the parent company, preserving the core business’s image as a high-margin, technology-driven enterprise. These maneuvers triggered numerous lawsuits and intense public backlash, with critics accusing DuPont of orchestrating an environmental charade. In 2015, DuPont entered a historic merger with another chemical giant, Dow Chemical, forming DowDuPont. At its peak, DowDuPont commanded a market capitalization exceeding $150 billion, making it the world’s largest chemical company. However, due to internal integration challenges, the conglomerate split again in 2019 into three independent entities: Dow Inc., DuPont de Nemours, Inc., and Corteva Agriscience. This sequence of merger-and-split constitutes one of the most dramatic corporate restructurings in the chemical industry—merging only to split apart shortly thereafter, yet retaining the original brand names post-divestiture. Despite repeated splits and mergers, DuPont has consistently upheld its core business focus and corporate values.

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GlobeNewswire

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