On England's industrial northeast coast, a multinational petrochemical company stands at the threshold of criminal prosecution for steadily increasing releases of benzene — a carcinogen with no safe exposure level — into the air breathed by workers, schoolchildren, and residents of Redcar. The Environment Agency, which knew of permit breaches as early as 2023 but waited three years to act, now weighs legal action against Huntsman Polyurethanes even as the company withholds its own monitoring data and insists it is compliant. The case illuminates a quiet, recurring tragedy in industrial communi
UK plastic maker faces prosecution over carcinogenic benzene emissions
Workers and local community residents, including children near schools, exposed to carcinogenic benzene with no safe exposure level; historical cancer prevalence in Redcar area linked to industrial pollution.
You can't manufacture plastics without creating pollution
Mark
Why did it take the Environment Agency three years to investigate something they knew about in 2023?
Mimi
The documents show they were aware the new pollution control system was periodically pausing, but they didn't launch a formal investigation until 2026. The agency itself acknowledged that earlier follow-up could have supported more timely compliance. It's a gap between awareness and action.
Mark
Huntsman says it's fully compliant with its permit. How can that be true if benzene emissions rose 31 percent?
Mimi
That's the tension at the heart of this. The permit sets an emissions ceiling, and Huntsman says it stayed within that ceiling. But the modelling showed those permitted emissions could exceed air quality standards by 933 percent in some scenarios. The permit itself may not be stringent enough to protect health.
Mark
The Environment Agency's own review said the impacts were "not insignificant but predicted environmental concentrations remain below relevant standards." Doesn't that settle it?
Mimi
Not for the scientists involved. They're pointing out that staying below a standard doesn't mean there's no risk—especially for a carcinogen with no safe exposure level. It's like saying a poison is fine as long as you don't exceed a certain dose. The standard itself may be the problem.
Mark
Why won't Huntsman share its monitoring data?
Mimi
That's unanswered. The company says its own measurements show concentrations are safe, but it's refused to provide that data to either the Guardian or the Environment Agency. It's hard to assess risk when the operator controls the information.
Mark
What does this say about how we regulate plastic manufacturing?
Mimi
The broader research suggests the industry is inherently polluting—you can't make plastics without creating hazardous emissions, and the plastics themselves become pollution. This case suggests our regulatory approach treats that as acceptable as long as you stay within arbitrary thresholds, rather than asking whether those thresholds are actually protecting people.
O Pulso
- Benzene emissions from the Teesside site climbed 31% in just two years after the company dismantled its own pollution controls and replaced them with a system that periodically fails entirely.
- The company's own air quality modelling predicted benzene concentrations could exceed the legal 24-hour standard by nearly tenfold — yet regulators concluded the risk to nearby schools remained acceptable.
- Huntsman has refused to share its air monitoring data with either the Guardian or the Environment Agency, leaving the true scale of community exposure unresolved and contested.
- Scientists and campaigners are calling the regulator's three-year delay a 'travesty,' warning that documenting harm after the fact is no substitute for preventing it.
- The Environment Agency has now notified public health authorities and is formally considering prosecution, but whether legal action will follow — or arrive in time to matter — remains uncertain.
On England's industrial northeast coast, a multinational petrochemical company stands at the threshold of criminal prosecution for steadily increasing releases of benzene — a carcinogen with no safe exposure level — into the air breathed by workers, schoolchildren, and residents of Redcar. The Environment Agency, which knew of permit breaches as early as 2023 but waited three years to act, now weighs legal action against Huntsman Polyurethanes even as the company withholds its own monitoring data and insists it is compliant. The case illuminates a quiet, recurring tragedy in industrial communities: the gap between what the law permits and what the body can safely endure.
A plastic manufacturer on England's northeast coast is facing potential criminal prosecution after regulators found it has been releasing rising quantities of benzene — a chemical that causes leukaemia and has no safe exposure threshold — into the air surrounding Teesside and the town of Redcar.
Huntsman Polyurethanes, part of a multinational petrochemical corporation with roughly $6 billion in annual revenue, dismantled its benzene capture system in 2023 and handed responsibility to a third-party operator. That replacement system has repeatedly shut down, allowing benzene to escape uncontrolled. Emissions rose from 13 tonnes in 2022 to 17 tonnes in 2024. The Environment Agency was aware of permit breaches by 2023 but did not open a formal investigation until 2026, when inspectors documented multiple violations and warned of potential significant harm to human health and the environment.
The dispute over actual risk is unresolved and troubling. Huntsman's own modelling found that benzene concentrations could exceed the legally binding 24-hour air quality standard by 933 percent in certain scenarios. The Environment Agency's internal review reached a more reassuring conclusion — that concentrations near local schools remained within acceptable limits. Huntsman, meanwhile, refuses to release its site-boundary monitoring data to either regulators or journalists, claiming internally that readings stay within legal limits.
Experts are not reassured. A senior Greenpeace researcher called the delayed regulatory response a travesty. An atmospheric chemist at the University of York said the agency appears to be tolerating a clear degradation in air quality based on thresholds he described as somewhat arbitrary. An environmental epidemiologist urged immediate community-level benzene measurements alongside urgent emission reductions.
The case resonates beyond one company. Research has linked plastic production facilities to elevated cancer risks for workers, and a former community organiser in Redcar recalled that local residents had come to speak of cancer as casually as a common illness — a normalisation born of decades of industrial exposure. The Environment Agency has now alerted public health bodies, and prosecution remains possible. But the episode has laid bare a structural failure: a company can remain technically within its permit while releasing a known carcinogen at levels its own data suggests may be dangerous, and can withhold the evidence that would settle the question.
A plastic manufacturer on England's industrial northeast coast is bracing for potential criminal prosecution after regulators discovered it has been releasing a cancer-causing chemical into the air at levels that have climbed steadily over the past three years. The Environment Agency is weighing legal action against Huntsman Polyurethanes, which operates in Teesside near the seaside town of Redcar, North Yorkshire, for what amounts to a breach of its environmental permit—itself a criminal matter under UK law.
Huntsman Polyurethanes is part of Huntsman Corporation, a multinational petrochemical giant with annual revenues around $6 billion. The company manufactures chemicals used in plastic production. In 2023, it dismantled a system designed to capture benzene emissions and switched to an alternative method run by a third party. That new system, according to internal Environment Agency documents, has periodically shut down, allowing benzene to escape directly into the atmosphere. The regulator knew about this problem in 2023 but did not launch a formal investigation until 2026.
The numbers tell the story of a worsening situation. Benzene emissions from the site rose from 13 tonnes in 2022 to 17 tonnes in 2024—a 31 percent increase. Benzene is a known human carcinogen that causes leukaemia. The World Health Organization has determined there is no safe level of exposure to it. In March 2026, the Environment Agency's inspection uncovered multiple permit violations related to these emissions and noted in its report that deficiencies in the site's management systems could "result in a significant impact on the environment or human health."
Huntsman commissioned air quality modelling to assess the impact of its benzene releases. The results were stark. In one scenario tested, benzene concentrations were predicted to exceed the legally binding 24-hour air quality standard by 933 percent. Yet when the Environment Agency's own experts reviewed the modelling internally, they concluded the predicted environmental concentrations remained below relevant standards and posed no significant risk to nearby schools. This disagreement between the raw data and the regulator's interpretation sits at the heart of the dispute.
Huntsman maintains its emissions are fully compliant with its permit. The company has refused to share its own air monitoring data with the Guardian or the Environment Agency, though it claims internal measurements show concentrations beyond the site boundary remain within legal limits. The Environment Agency, for its part, acknowledged it could have acted sooner but said recent interventions have led to "significantly improved performance" of the pollution control system since February 2026.
Scientists and campaigners are unconvinced. David Santillo, a senior researcher at Greenpeace's laboratories at the University of Exeter, called the regulator's delayed response "a travesty" and argued the Environment Agency should prevent such emissions rather than simply document them and request more reports. Ally Lewis, a professor of atmospheric chemistry at the University of York, said the agency appears to be "allowing an obvious degradation in air quality" of a pollutant known to cause cancer, justified only by staying below "somewhat arbitrary" thresholds. Roel Vermeulen, an environmental epidemiology professor at Utrecht University, said the modelling report flags a plausible problem that warrants immediate community-level benzene measurements alongside efforts to reduce emissions.
The case has drawn attention to a broader pattern in the plastics industry. Research from Boston College found that workers at plastic production facilities face elevated risk of multiple cancers, including leukaemia. A recent Greenpeace investigation documented how hazardous chemicals used in plastic manufacturing poison both people and ecosystems—a problem distinct from, and in addition to, the pollution caused by plastic waste itself. Carole Zagrovic, who worked as a community development specialist for Friends of the Earth in Redcar in the early 2000s, recalled that residents of the area "talked about cancer like it's the flu," having grown inured to industrial illness. She expressed dismay that such pollution persists despite years of local campaigning.
The Environment Agency has informed the UK Health Security Agency and the Health and Safety Executive so they can assess public and occupational health risks. Whether the regulator will ultimately prosecute Huntsman remains uncertain, but the case has exposed a regulatory gap: a company can operate within its permit while still releasing a known carcinogen at levels that modelling suggests may exceed safe air quality standards, and it can withhold the very data that would clarify the true risk to workers and neighbors.
Citações Notáveis
The Environment Agency should be there to prevent this kind of thing, not just to document it and request more and more reports.— David Santillo, senior scientist, Greenpeace Research Laboratories
If this is our national approach to managing risk and chemicals it seems remarkably laissez-faire and hands off.— Ally Lewis, professor of atmospheric chemistry, University of York
Quer a matéria completa?
Leia o original em The Guardian ↗
Business