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Ethylene oxide exposure lawsuit​ with victims of EtO exposure

Ethylene Oxide Lawsuit

Millions of Americans are at risk of cancer from ethylene oxide emissions - you may be eligible for compensation if you have developed Leukemia, Lymphoma, Breast Cancer, or Stomach Cancer. Join the ethylene oxide lawsuit today!

  • Cancer Lawsuits

Last Update

  • December 11, 2025
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On This Page

  • Ethylene Oxide Lawsuit Updates
  • About The Ethylene Oxide Lawsuit
  • What is Ethylene Oxide?
  • Troubling History of EPA Regulation and EtO Use in Sterilization Facilities
  • How Does Ethylene Oxide Exposure Occur?
  • Cancers Linked to Ethylene Oxide
  • Communities at Risk Near EtO SterigSterilization Plants
  • Vulnerable Populations Face Higher Risks
  • New and Stronger EtO Rules
  • Ethylene Oxide Lawsuit Allegations
  • Who Can Join the Ethylene Oxide Lawsuits?
  • What to Expect in EtO Litigation
  • Your Next Steps in the Fight for Justice

Ethylene Oxide Lawsuit Updates
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Study Links Ethylene Oxide Exposure to Hormonal Aging Effects

A study published in Nature, titled “Association between Ethylene Oxide Exposure and Klotho Levels in U.S. Adults,” found that repeated exposure to ethylene oxide (EtO) may accelerate biological aging. Researchers reported that individuals exposed to EtO showed reduced levels of klotho, an anti-aging hormone naturally produced by the body and associated with increased longevity. The findings indicate that even low-level exposure can disrupt hormonal activity. Individuals who developed cancer following documented EtO exposure are now filing lawsuits against industrial facilities alleged to have released EtO into surrounding air communities.

12/02/25

Puerto Rico Residents File Ethylene Oxide Lawsuit Over Alleged Air Contamination

A group of ten Puerto Rico residents has filed a lawsuit against six facilities that use ethylene oxide (EtO) for sterilization. The plaintiffs allege they were not warned about the carcinogenic gas's presence in their community's air. The legal action seeks compensation for their increased cancer risk and other health harms. The plaintiffs also encourage other affected community members to file similar claims against companies whose EtO emissions have allegedly contaminated air near homes, schools, and businesses.

11/17/25

Ethylene Oxide Airborne for Months, Posing Prolonged Community Cancer Risk

According to the Interstate Technology & Regulatory Council, ethylene oxide (EtO) can persist in the air for two to five months after being emitted. This characteristic allows the known carcinogen to impact surrounding communities for an extended period, unlike when it is released into soil or water, where it breaks down more rapidly. This prolonged airborne risk is a central allegation in lawsuits filed by residents living near sterilization facilities, who cite EPA findings of an increased cancer risk for nearby populations.

11/04/25

Medical Sterilization Facility Exempt from Updated Ethylene Oxide Emissions Rules

Trinity Sterile, a Maryland-based medical sterilization facility, has received an exemption from the EPA's 2024 regulations that require a over 90% reduction in ethylene oxide emissions by 2026. The U.S. government has granted such exemptions to numerous facilities, delaying compliance for several years. Meanwhile, residents living near these plants continue to file lawsuits, alleging that exposure to the carcinogenic gas released into the air has caused them to develop cancer.

10/17/25

About The Ethylene Oxide Lawsuit

Imagine learning that a colorless, odorless gas used in everyday products could be silently causing cancer in your community. For millions of Americans living near ethylene oxide (EtO) sterilization facilities, this nightmare is a reality.

 

If you developed lymphoma, leukemia, breast cancer, or stomach cancer and believe EtO exposure may be to blame, you deserve answers – and justice. 

 

At OnlyClassAction, we can potentially help you connect to lawyers who can determine if you may qualify to join the current ethylene oxide lawsuits. Let's discover what you need to know.
 

What is Ethylene Oxide?

EtO is a flammable, colorless gas commonly used for sterilizing medical equipment and producing chemicals like antifreeze and pesticides.

 

While its sterilization properties make it useful in healthcare settings, EtO's ability to damage DNA also makes it a potent cancer-causing agent and health risk.
 

Troubling History of EPA Regulation and EtO Use in Sterilization Facilities

The dangers of ethylene oxide have been known for decades, yet some companies have prioritized profits over public health.

 

Consider these key events:

  • 1940s-1950s: EtO becomes widely used for medical sterilization and chemical production.
  • 1980s: Studies linked EtO exposure to increased cancer risks, particularly leukemia and lymphoma.
  • 1990s-2000s: EPA classifies EtO as a known human carcinogen but fails to update sterilization facility regulations.
  • 2016: EPA releases updated EtO cancer risk assessment, finding a 30-fold higher risk than previously thought.
  • 2018-2019: Media reports reveal elevated cancer risks near EtO facilities in Illinois, Georgia, and other states.
  • 2020-2024: Community groups and environmental advocates file lawsuits and push for stricter EtO regulations and corporate accountability.

 

This history of delay and inaction has left countless families at risk and searching for answers.
 

How Does Ethylene Oxide Exposure Occur?

There are several ways dangerous levels of ethylene oxide can reach the public:

  • Occupational exposure: Workers in EtO processing plants or commercial sterilization facilities face risks even with safety measures in place.
  • Environmental exposure: Uncontrolled emissions from industrial plants that use ethylene oxide can contaminate air and water in nearby communities.
  • Consumer products: Many manufacturers sterilize items with EtO, including:
    • Medical devices and products
    • Cosmetics and personal care items
    • Spices and seasonings
  • Tobacco smoke: Cigarettes are another source of EtO exposure.

Cancers Linked to Ethylene Oxide

Studies have shown strong links between ethylene oxide exposure and several types of cancer:

  • Lymphoma and leukemia are the most common cancers associated with occupational EtO exposure.
  • Doctors have also linked breast and stomach cancer to EtO, and researchers believe EtO's DNA-altering properties may also cause health issues in unborn children when pregnant women are exposed.

 

Other cancer/injury types include: 

  • Blood Disorders
  • Brain Tumors
  • Kidney Cancer
  • Kidney Damage
  • Lung Cancer
  • Lymphocytic leukemia
  • Myeloma
  • Non-Hodgkin Lymphoma
  • Pancreatic cancer
  • Stomach cancer
  • Testicular damage
  • Uterine cancer

 

Communities at Risk Near EtO SterigSterilization Plants

An estimated 14 million Americans live within just 5 miles of EtO sterilization facilities. 

Emissions from these plants create "hot spots" of elevated cancer risk in areas like:

  • Lake and Cook County, Illinois
  • Laredo, Texas
  • Salinas, Puerto Rico

 

Despite knowing the dangers for decades, companies like Sterigenics have allegedly put profits over public health.

 

Vulnerable Populations Face Higher Risks

While ethylene oxide exposure threatens entire communities, some groups are particularly vulnerable:

  • Children: EtO is 60 times more toxic to children than adults, putting schools and daycare centers near sterilization plants at risk.
  • Pregnant women: as mentioned earlier, exposure during pregnancy may lead to birth defects, developmental issues, and childhood cancers.
  • Low-income and minority neighborhoods: Many EtO facilities are located in underserved areas, worsening existing health disparities.
  • Elderly and immunocompromised individuals: These groups may be more susceptible to developing cancer from chronic EtO exposure.

 

Holding polluters accountable protects these at-risk populations and prevents future harm.

 

New and Stronger EtO Rules

In 2024, the Environmental Protection Agency (EPA) finally updated its regulations for ethylene oxide sterilization facilities for the first time in 30 years.

 

The new regulations require a 99% reduction in emissions within the next 2-3 years. However, many environmental advocates argue that these measures still fall short.

 

Community groups have sued the EPA, pushing for stricter air monitoring and a "major source" classification for EtO facilities. Meanwhile, the sterilization industry is fighting the regulations in court, disputing the EPA's risk assessment.

 

Ethylene Oxide Lawsuit Allegations

Lawsuits against companies like Sterigenics allege that sterilization companies:

  • Failed to warn plaintiffs, workers, and communities about EtO exposure risks adequately.
  • Used improper emission controls and safety practices.
  • Caused elevated cancer rates in neighborhoods near sterilization plants.
  • Prioritized profits over people's health and well-being.

 

If these allegations sound all too familiar to you and your family, you may qualify to join the growing litigation.

Who Can Join the Ethylene Oxide Lawsuits?

You may be eligible to seek legal action against an ethylene oxide defendant if you or a family member:

  • Were diagnosed with lymphoma, leukemia, breast cancer, stomach cancer, or other cancers linked to EtO.
  • Lived or worked near an EtO sterilization plant.
  • Believe ethylene oxide exposure may have provoked your cancer diagnosis.

 

If you meet the above requirements, you may be entitled to compensation. We encourage you to seek legal advice to determine your eligibility. Various factors impact eligibility, and all cases are unique.

 

What to Expect in EtO Litigation

Ethylene oxide lawsuits are complex and often consolidate into more extensive mass tort proceedings against companies like Sterigenics and its parent company, Sotera Health.

 

While many ethylene oxide cases may eventually settle, some will likely go to trial, setting important precedents for corporate accountability.

 

No matter what legal path you choose, your legal counsel will guide you every step of the way.

 

Your Next Steps in the Fight for Justice

You didn't choose to be a victim of ethylene oxide exposure, but you can choose to take control of your legal rights. 

 

Now is the time to act if you believe EtO contamination caused your cancer.

Sterilization corporations that put their bottom line ahead of your community's health aren't wasting any time mounting their defense. 

 

OnlyClassAction can help connect you with an attorney in our network. Sign up for the ethylene oxide lawsuit today to hold polluters accountable and create a safer, healthier future for all.

On This Page

  • Ethylene Oxide Lawsuit Updates
  • About The Ethylene Oxide Lawsuit
  • What is Ethylene Oxide?
  • Troubling History of EPA Regulation and EtO Use in Sterilization Facilities
  • How Does Ethylene Oxide Exposure Occur?
  • Cancers Linked to Ethylene Oxide
  • Communities at Risk Near EtO SterigSterilization Plants
  • Vulnerable Populations Face Higher Risks
  • New and Stronger EtO Rules
  • Ethylene Oxide Lawsuit Allegations
  • Who Can Join the Ethylene Oxide Lawsuits?
  • What to Expect in EtO Litigation
  • Your Next Steps in the Fight for Justice
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Frequently Asked Questions (FAQ)

Ethylene oxide (EtO) is a colorless, flammable gas used to sterilize medical equipment and produce chemicals. While it effectively kills bacteria and viruses, EtO is also a known human carcinogen. Exposure to ethylene oxide has been linked to an increased risk of developing lymphoma, leukemia, breast cancer, and stomach cancer.

You may have been exposed to elevated chemical levels if you live or work near an EtO sterilization facility. Some signs of exposure include eye, nose, and throat irritation, headaches, nausea, and dizziness. However, many people do not experience immediate symptoms. If you are concerned about ethylene oxide exposure, consult a medical professional and consider joining an EtO lawsuit.

If you believe your cancer diagnosis may be linked to EtO exposure, it's important to seek legal guidance as soon as possible. OCA can connect you to an experienced ethylene oxide attorney to discuss your case and determine if you qualify for an ongoing lawsuit against companies like Sterigenics.

Ethylene oxide lawsuits are complex and often involve multiple plaintiffs and defendants. Some cases may be consolidated into multidistrict litigation (MDL) or class actions to streamline the legal process. While some EtO settle relatively quickly, others could take years to resolve, particularly if they go to trial. Your legal counsel can provide more specific guidance based on the details of your case.

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