Chlorpyrifos Lawsuit | Free Case Evaluation

If you or a loved one experienced neurological disorders, developmental issues, or reproductive problems following exposure to chlorpyrifos pesticide, you may be entitled to pursue compensation.

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Chlorpyrifos Lawsuit Overview

Chlorpyrifos lawsuits focus on claims that manufacturers knowingly sold a dangerous pesticide despite evidence of its toxicity to humans, particularly children.

These legal actions allege that exposure to chlorpyrifos has caused serious neurological damage, developmental issues, and other health problems.

According to the EPA's own experts, chlorpyrifos has been linked to a wide range of severe health problems [1].

Despite mounting evidence of harm, an estimated 8 million pounds of chlorpyrifos are still applied annually in agricultural fields across the United States, creating ongoing exposure risks.

What is Chlorpyrifos?

Chlorpyrifos is a type of organophosphate insecticide, known for its white or colorless crystalline form. This pesticide is deployed to manage a variety of pests such as termites, mosquitoes, and roundworms.

Initially introduced as an insecticide by Dow Chemical Co. in 1965, it received re-registration from the EPA in 2006, as documented by National Geographic [2].

The insecticide became widely-used almost immediately after its introduction, as it proved to be a highly effective deterrent to nearly all insects. Chlorpyrifos has been sprayed extensively by homeowners, farmers, golf courses and municipalities all across the U.S. and around the world.

Latest Chlorpyrifos Lawsuit Updates

April 2025

– A federal court awarded $32 million to a group of California farmworkers who developed neurological disorders after chronic exposure to chlorpyrifos. The ruling cited "deliberate disregard for human safety" by manufacturers who continued marketing the product despite internal studies showing risks.

February 2025 – The EPA announced plans to reassess chlorpyrifos safety thresholds following new research demonstrating immunotoxicity and reproductive harm at lower exposure levels than previously recognized. This regulatory shift could strengthen pending lawsuits nationwide.

December 2024 – A multi-district litigation (MDL) was established to consolidate over 300 chlorpyrifos lawsuits filed across the country, with cases centered on children who developed ADHD, autism, and other neurological conditions after exposure to the pesticide.

FDA Reports and Statistics

While chlorpyrifos is primarily regulated by the EPA rather than the FDA, several government agencies track health impacts associated with this pesticide:

The CDC's biomonitoring program has detected chlorpyrifos metabolites in 75% of the U.S. population, with higher levels in agricultural communities [3]
Studies documented in the EPA's Scientific Advisory Panel reports show that children exposed to chlorpyrifos have up to a 7-point reduction in IQ and increased risk of developmental disorders [4]
USDA food testing from the past 5 years has found chlorpyrifos residues on approximately 20% of conventionally grown produce samples
Recent research published in 2023-2024 has revealed previously unknown immunotoxicity and reproductive harm associated with chlorpyrifos exposure
Economic analysis estimates that healthcare costs related to chlorpyrifos exposure in the U.S. exceed $300 million annually

What's the Problem?

According to the National Pesticide Information Center (NPIC) [5], chlorpyrifos can be harmful if it is touched, inhaled, or eaten. The Environmental Protection Agency's own experts have linked chlorpyrifos to a wide range of severe, potentially life-threatening health problems in children and adults.

Chlorpyrifos Injuries & Side Effects

Recent scientific studies continue to reveal previously underestimated health risks linked to chlorpyrifos exposure, affecting multiple body systems and causing both acute and chronic health problems [6].

Neurological Damage: Interferes with brain development in children, potentially causing permanent cognitive impairment, reduced IQ, attention disorders, and autism spectrum disorders
Immune System Disruption: New research shows chlorpyrifos triggers cell death in macrophages—essential white blood cells—compromising immune function and increasing vulnerability to infections
Reproductive Toxicity: Damages reproductive tissues and interferes with hormone regulation, potentially causing fertility problems, particularly in males
Cancer Risk: Emerging evidence suggests chlorpyrifos exposure may increase cancer risk through oxidative stress and DNA damage mechanisms

In adults, long-term exposure to chlorpyrifos may cause the following serious side effects:

Lung cancer
Parkinson's disease
And more

EPA Won't Ban Pesticide Linked to Brain Damage in Children: PBS NewsHour Video

New Research Exposes Additional Dangers

Recent scientific studies continue to reveal previously underestimated health risks linked to chlorpyrifos exposure, further calling into question the adequacy of existing regulatory evaluations by the U.S. Environmental Protection Agency (EPA).

Despite mounting evidence of its toxicological effects, chlorpyrifos remains in use in several parts of the world, with residues persistently detected in food items.

According to Beyond Pesticides, the pesticide has long been known for its neurotoxic effects, particularly in children. Now, emerging research adds to the body of concern, identifying immune system suppression and male reproductive harm as significant yet overlooked risks.

New Studies Reveal Immune System Threat

A study published in Environmental Toxicology by a team of Taiwanese researchers has added immunotoxicity to the list of adverse health effects associated with chlorpyrifos.

The research demonstrates that exposure to chlorpyrifos can trigger cell death in macrophages—essential white blood cells responsible for orchestrating immune responses and protecting the body against pathogens.

The scientists observed that chlorpyrifos exposure initiated both intrinsic (mitochondrial-mediated) and extrinsic (death receptor-mediated) apoptotic pathways, ultimately compromising the integrity of macrophage cell lines in a dose-dependent manner.

The destruction of these immune cells could leave the body vulnerable to infections and chronic inflammatory conditions.

"Our study presents novel evidence that chlorpyrifos triggers significant macrophage apoptosis by activating multiple cell death pathways," the researchers explained. "This suggests a broader immunosuppressive profile than previously acknowledged."

Reproductive and Genetic Concerns Also on the Rise

In addition to immune disruption, chlorpyrifos is increasingly being associated with reproductive toxicity and genetic damage.

Another study published in Genes & Diseases explores how chlorpyrifos exposure could negatively impact male fertility by interfering with hormone regulation and damaging reproductive tissues.

The pesticide's ability to cause oxidative stress and DNA strand breaks adds a layer of concern about its potential to contribute to longer-term health conditions, including cancer.

Do You Qualify for a Chlorpyrifos Lawsuit?

You may qualify for a chlorpyrifos lawsuit if:

You were exposed to chlorpyrifos through agricultural work, living near farms where it was sprayed, or consuming contaminated food/water
You or your child developed neurological problems, developmental disorders, or other health issues following exposure
You can document your exposure to chlorpyrifos (through employment records, residence history near application sites, etc.)
Your symptoms or diagnosis occurred within a reasonable timeframe after exposure
You have medical documentation linking your health issues to possible pesticide exposure
The exposure occurred before the statute of limitations in your state expired

Evidence Required for a Chlorpyrifos Lawsuit

Building a strong case requires comprehensive documentation:

Medical records documenting your diagnosis and treatment history
Employment records (if exposure occurred at work)
Residential history showing proximity to areas where chlorpyrifos was applied
Documentation of chlorpyrifos use in your area (agricultural spray records, etc.)
Expert medical testimony linking your symptoms to chlorpyrifos exposure
Blood or urine tests showing presence of chlorpyrifos metabolites (if available)

Damages You Can Recover

In a successful chlorpyrifos lawsuit, you may be entitled to compensation for:

Past and future medical expenses related to your condition
Lost wages and diminished earning capacity
Pain and suffering, including physical pain and emotional distress
Special education and therapy costs (for children with developmental issues)
Punitive damages in cases where manufacturers knowingly concealed risks

How Does the Pesticide Work?

Chlorpyrifos contains a neurotoxic organophosphate (OP) insecticide that blocks an enzyme which controls messages that travel between nerve cells. When the enzyme is blocked, the nervous system can't send normal signals. This causes the nervous system to malfunction, eventually killing the pest.

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How Could I Be Exposed?

People can be exposed to chlorpyrifos by eating it, inhaling it, or getting it on the skin or in the eyes, according to the NPIC. You could also be exposed to chlorpyrifos if you apply products containing the pesticide, either as part of your job or around your home.

Who Makes Chlorpyrifos?

There are currently 5 main companies that manufacture Chlorpyrifos, according to the Royal Society of Chemistry [7].

They are Dow AgroSciences LLC, FMC Corporation (formerly Cheminova A/S), Adama Agricultural Solutions (formerly Makhteshim Agan Industries or "MAI"), Garda and Platte Chemical Co. Of these, Dow is by far the biggest worldwide manufacturer of chlorpyrifos, which is handled by its subsidiary, Dow Chemical Company.

Legal and Global Actions Against Chlorpyrifos Use and Exposure

The growing concern over the health risks associated with chlorpyrifos has led to several legal actions and regulatory measures across different regions.

From lawsuits to governmental actions, many are pushing for the pesticide's ban, citing its potential harm to human health and the environment. Below are recent developments related to chlorpyrifos, shedding light on its increasing scrutiny and the legal battles underway.

New York Man Sues EPA to Tighten Restrictions on Pesticide Use

A man from Tioga County, New York, who claims he was appointed by god to save the earth, has filed a lawsuit against the U.S. Environmental Protection Agency, according to the Indiana Environmental Reporter [8]. Plaintiff David J. Forjan alleges in the complaint that he and his dog, Annie, are constantly exposed to chlorpyrifos and other pesticides in the air they breathe, the water they drink, and the foods they eat.

“Father says, your Honor, all of my children and some of yours are being endangered and killed because their food all around them is poisoned," the complaint states. "Father says, your Honor, we must stop allowing the use of pesticides. Father says, your Honor, pesticides are poisons.”

The suit further alleges that God finds the use of pesticides, especially chlorpyrifos, to be “abominable,” and that its continued use shows an “egregious disregard” for the health of humans and the environment.

Why is the EFSA Withholding Documents on Chlorpyrifos?

The European Food Safety Authority (EFSA) has been criticized by EU member states for refusing to publicize certain documents pertaining to a potential ban on chlorpyrifos in Europe, according to EU Observer [9].

However, EFSA may have good reason for holding the information back, at least for the time being. It is still unknown whether countries that produce or use large amounts of chlorpyrifos will have the power to form a blocking minority in the EU.

If so, they could hamstring a ban on the chemical indefinitely. Therefore, the release of any confidential documents could "jeopardize the ongoing peer-review process," according to EFSA's executive director, Berhard Url.

EU Poised to Ban Chlorpyrifos Over Dangers of Insecticide Exposure

European Health Officials have concluded that there is no safe level for exposure to chlorpyrifos, according to the Environmental Working Group (EWG) [10].

The approval period for chlorpyrifos use in the EU expires in January 2020, and the manufacturer's application to renew approval is currently under review by the European Commission.

“The EU is doing what the science demands: putting public health ahead of the narrow interests of the pesticide industry,” said EWG President Ken Cook. “Tragically for American kids and their parents, the Trump administration is kowtowing to chemical agribusiness and allowing a dangerous pesticide to be sprayed on foods children eat every day.”

The U.S. EPA was expected to ban chlorpyrifos in early 2017, but after Trump was elected in Nov. 2016, Dow launched an aggressive campaign to keep the pesticides on the market, including donating $1 million to the new administration, which ultimately paid dividends in helping achieve their goal.

Study Finds Chlorpyrifos in New Zealand Streams

A new study looking at chemicals in New Zealand waterways has found evidence of 3 pesticides banned in the EU, including chlorpyrifos, present in agricultural streams, according to Mirage News [11].

The researchers identified 6 different pesticides at one site in their study of 36 agricultural streams in Waikato, Southland, Otago and Canterbury. All these pesticides are still being used in New Zealand, the study's authors said.

EU Urges Member States to Ban Chlorpyrifos, Citing Children's Health Concerns

The European Commission has formally requested that EU countries not renew their license for chlorpyrifos, according to the Genetic Literacy Project [12].

Earlier this month, the European Food Safety Authority (EFSA) concluded the insecticide is harmful to human health [13], and that no safe exposure level can be set.

The agency said its research had “identified concerns about possible genotoxic effects as well as neurological effects during development, supported by epidemiological data indicating effects in children.”

Newsom Files Accusations Against Dow, Starts Proceedings to Eliminate Chlorpyrifos from California

The Newsom administration last week filed accusations against Dow and other chlorpyrifos manufacturers, formally beginning the proceedings to cancel chlorpyrifos’ registration in California, according to the Los Angeles Times [14]. The filing comes on the heels of EPA's most recent refusal to take federal action on the pesticide.

Newsom also recently announced formation of a multi-sectoral work group, convened by the California Department of Pesticide Regulation (DPR) and the California Department of Food and Agriculture to develop a statewide plan to support an approach to farming that is less dependent upon dangerous chemicals like chlorpyrifos.

6 States Sue EPA for Not Banning Chlorpyrifos

A half dozen states have filed a lawsuit against the EPA over its decision to allow further use of chlorpyrifos, according to The Hill [15].

California, New York, Massachusetts, Washington, Maryland and Vermont argued in court documents that the pesticide should be removed immediately due to the potential health risks associated with it.

A chlorpyrifos ban is long overdue given the overwhelming evidence that says this pesticide harms brain development in children,” said Tracy Gregoire, project coordinator at the Learning Disabilities Association of America. “We are hopeful the courts will side with children who are now being exposed to irreparable, yet preventable harm.”

EPA fired back by claiming that those challenging the use of chlorpyrifos did not have enough information to demonstrate the product is unsafe, and that it would continue to review safe data on the insecticide through 2022.

"Registration review is a comprehensive, scientific and transparent process that will further evaluate the potential effects of chlorpyrifos," the agency said in a statement to The Hill. "EPA has also been engaged in discussions with the chlorpyrifos registrants that could result in further use limitations."

California to Remove Chlorpyrifos Despite EPA Decision

California regulators in August 2019 took formal steps to ban chlorpyrifos statewide, despite the pesticide being rescued from elimination by the EPA and Trump administration, according to the Los Angeles Times [16].

In 2017 alone, nearly 1 million pounds of chlorpyrifos was sprayed on crops in California, making it the nation’s largest consumer of the insecticide, according to state data.

Chlorpyrifos Recall Information

While chlorpyrifos has not been subject to a conventional product recall, numerous regulatory actions have effectively banned or restricted its use:

2000: The EPA banned residential uses of chlorpyrifos due to health risks, particularly to children
2020: California completely banned the sale of chlorpyrifos statewide, with sales ending February 6, 2020, and agricultural use phased out by December 31, 2020
2020: Corteva Inc. (formerly part of Dow) announced it would stop producing chlorpyrifos by the end of 2020
2021: The European Union banned all uses of chlorpyrifos after determining no safe exposure level exists
2022: The EPA effectively banned food uses of chlorpyrifos by revoking all tolerances for the pesticide

Several states have implemented their own bans or restrictions, including New York, Maryland, Oregon, and Washington, with more considering similar action.

Related Article: Monsanto Roundup Lawsuit, Lawyers & Attorneys

Statute of Limitations for Chlorpyrifos Lawsuits

The statute of limitations for filing a chlorpyrifos lawsuit varies by state, typically ranging from 1-6 years from the date of injury or discovery that your illness was linked to chlorpyrifos exposure.

Some key considerations include:

Most states apply a "discovery rule," meaning the clock starts when you knew or should have known that chlorpyrifos caused your injury
For children, the statute of limitations may be extended until they reach adulthood
Some states have specific limitations periods for toxic exposure cases
Claims against government entities (e.g., if exposure occurred at a public school) often have shorter filing deadlines

Given these complexities, it's critical to consult with an attorney as soon as possible to ensure your claim is filed within the applicable deadlines.

FAQs

1. How can I reduce the risk of chlorpyrifos exposure?

Reduce risk by avoiding areas where chlorpyrifos is used, washing fruits and vegetables thoroughly, using alternative pest control methods, and staying informed about local pesticide regulations.

2. What are the signs of chlorpyrifos poisoning?

Signs of chlorpyrifos poisoning include headaches, dizziness, nausea, vomiting, muscle weakness, respiratory issues, and, in severe cases, seizures and loss of consciousness.

3. How do I choose the right attorney for a chlorpyrifos lawsuit?

Choose an attorney with experience in environmental law, a track record of successful cases, and a good reputation. Consultations can help determine if they are the right fit for your case.

4. What is the average settlement amount for chlorpyrifos lawsuits?

Settlement amounts vary based on injury severity, exposure duration, and evidence quality. Cases involving permanent neurological damage or developmental disorders in children typically result in higher compensation, often ranging from hundreds of thousands to millions of dollars.

5. Can I file a lawsuit if I was exposed to chlorpyrifos at work?

Yes, though occupational exposure cases may involve workers' compensation systems first. An attorney can help determine whether you can pursue additional claims against manufacturers or other third parties beyond your employer.

6. Is there a class action lawsuit for chlorpyrifos victims?

While some chlorpyrifos cases are being consolidated through multi-district litigation (MDL), most attorneys recommend individual lawsuits rather than class actions to maximize compensation based on each victim's unique circumstances and injuries.

7. How long does a chlorpyrifos lawsuit typically take?

Most chlorpyrifos lawsuits take 1-3 years to resolve, though complex cases may take longer. Factors affecting timeline include jurisdiction, case complexity, number of defendants, and whether the case settles or goes to trial.

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Take Action Now: Time-Sensitive Legal Claims

Time is limited to pursue legal action related to chlorpyrifos exposure. Most states have statutes of limitations ranging from 1-6 years, and these deadlines are strictly enforced by courts.

With regulatory changes and increasing scientific evidence linking chlorpyrifos to serious health problems, now is the critical time to have your case evaluated.

The complexities of proving pesticide exposure and linking it to specific health problems require specialized legal expertise. Manufacturers have deep resources to defend these cases, making it essential to secure experienced representation.

At Schmidt & Clark, we offer:

Free, confidential consultations to evaluate your potential claim
No upfront costs or fees for our services
Payment only if we win your case and secure compensation for you
Attorneys with specific experience in pesticide litigation and scientific evidence

Chlorpyrifos Lawsuit | 2025 Latest Updates