In addition to the established link between atrazine and non-Hodgkin lymphoma, a growing body of scientific evidence suggests that atrazine exposure may also increase the risk of Parkinson's disease (PD) and parkinsonian symptoms. While the science here is still developing, Wagstaff Law Firm is also investigating cases involving people with direct exposure to atrazine, who later developed PD and parkinsonian symptoms.

What is Parkinson's Disease?

Parkinson's disease is a progressive neurological disorder caused by the gradual death of dopamine-producing neurons in a region of the brain called the substantia nigra. As these cells die, the brain loses its ability to coordinate movement, leading to the characteristic symptoms of the disease. Parkinson's is the second most common neurodegenerative disease in the United States after Alzheimer's, affecting nearly one million Americans.

Common symptoms of Parkinson's disease and parkinsonian conditions include:

• Tremor (involuntary shaking, often beginning in a hand or finger)
• Bradykinesia (slowed movement, including difficulty getting up from a chair or reduced arm swing while walking)
• Rigidity (stiffness in the arms, legs, neck, or trunk)
• Postural instability (balance problems, frequent falls)
• Non-motor symptoms including loss of smell (anosmia), constipation, REM sleep behavior disorder, depression, anxiety, cognitive changes, and dementia in later stages.

In addition to classic Parkinson's disease, some patients develop a related condition called secondary parkinsonism or atypical parkinsonism. These conditions share many of the same motor symptoms but may have different underlying causes or progression patterns. People who develop parkinsonian symptoms after atrazine exposure may qualify for a lawsuit even if they have not been formally diagnosed with classic Parkinson's disease.

Who Qualifies for the Syngenta Atrazine Lawsuit?

If you developed non-Hodgkin lymphoma, Parkinson's disease, or parkinsonian symptoms after exposure to atrazine, you may qualify for the Syngenta atrazine lawsuit. People with potential claims include:

Farmers and agricultural applicators who mixed, loaded, or sprayed atrazine on crops. These applicators typically face the highest exposure levels through inhalation and skin absorption during handling and spraying.

Farmworkers and farm families who lived or worked on farms where atrazine was applied. Exposure occurs through contact with treated fields, drift from nearby applications, and contaminated clothing brought home.

Groundskeepers and landscapers who applied atrazine to golf courses, sports fields, highways, parks, or commercial properties.

Manufacturing and formulation workers employed at atrazine production or pre-mix facilities.

If you or a loved one used atrazine and developed non-Hodgkin lymphoma, Parkinson's disease, or parkinsonian symptoms, contact us today for a free and confidential case evaluation.

Atrazine and Parkinson's Disease Lawsuit FAQ

How much does it cost to hire an atrazine lawyer?

Wagstaff Law Firm handles atrazine cases on a contingency-fee basis, which means there are no upfront costs or fees. Attorney fees are paid as a percentage of the recovery only if the case is successful. If we don't win, you don't pay.

How long will atrazine lawsuits take to resolve?

Cases of this kind typically take between two and five years to resolve. Some cases settle more quickly; others can last longer. The timeline depends on a variety of factors, including the complexity of the case, the number of plaintiffs involved, the discovery process, bellwether trials, court backlogs, and whether the defendant chooses to settle or proceed to trial.

Is atrazine linked to Parkinson's disease?

A growing body of scientific evidence suggests that atrazine exposure may increase the risk of Parkinson's disease and parkinsonian symptoms. Laboratory studies have shown that atrazine is directly toxic to the dopamine-producing neurons whose loss defines Parkinson's disease, and population studies have reported elevated PD risk among people exposed to atrazine through agriculture or contaminated drinking water. While the science is still developing and is not yet as fully established as the link between atrazine and non-Hodgkin lymphoma, the evidence is strong enough that our attorneys are accepting Parkinson's disease and parkinsonism cases for evaluation.

What if I have Parkinson's symptoms but no formal diagnosis?

People who develop parkinsonian symptoms — such as tremor, slowed movement, muscle rigidity, or balance problems — after atrazine exposure may qualify for a lawsuit even before receiving a formal Parkinson's disease diagnosis. We can review your case, help you understand what additional medical evaluation may be appropriate, and discuss your legal options. If you have parkinsonian symptoms and a history of atrazine exposure, please contact us.

What compensation can I recover in an atrazine lawsuit against Syngenta?

Compensation in successful cases may include both economic and non-economic damages. Economic damages cover medical expenses (past and future), lost wages, loss of earning capacity, rehabilitation costs, transportation expenses for treatment, and assistive equipment — which can be substantial for both cancer treatment and the long-term care often required for Parkinson's disease. Non-economic damages include pain and suffering, emotional distress, loss of enjoyment of life, mental anguish, disfigurement, and loss of consortium. In wrongful death cases, families may pursue funeral expenses and loss of financial support. Punitive damages may be awarded if a jury finds the defendant's conduct was reckless, malicious, or fraudulent.

What is the statute of limitations for atrazine cases?

The statute of limitations for atrazine cases varies by state. The deadline to file your case may depend on the state where the exposure took place, when you were diagnosed, and when you discovered (or reasonably should have discovered) the connection between your illness and atrazine. The best way to determine your eligibility is to contact our firm for a free case evaluation.

Do I need to hire a lawyer for an atrazine claim?

Mass tort litigation is highly complex. These cases typically involve hundreds or thousands of plaintiffs, multiple defendants, extensive legal procedures, scientific and medical evidence, and coordination among large plaintiff groups. A law firm with mass tort experience — and especially experience litigating against large chemical companies, like Syngenta— has the resources, scientific expertise, and trial experience needed to take on corporate defendants. Wagstaff Law Firm's team of experience pesticide attorneys brings all three.

What products contain atrazine?

Atrazine is found in hundreds of herbicide formulations. Products that contain atrazine include:

• AAtrex (Syngenta)
• Hi-Yield Atrazine
• Southern Ag Atrazine
• St. Augustine Weed Killer
• RPI Atrazine
• Bicep II Magnum (Syngenta pre-mix)
• Callisto Xtra (Syngenta pre-mix)

While Syngenta is the most prominent atrazine manufacturer, more than 100 companies sell atrazine-containing products in the United States.

How do I know if I was exposed to atrazine?

Many people do not realize they were exposed to atrazine until they begin to suffer adverse health effects. Common indicators include working in agriculture, applying herbicides to crops or lawns, living or working on or near treated farmland, working at an atrazine manufacturing or formulation facility, or drinking water from a well or municipal system in an agricultural region. Environmental testing can help confirm whether the soil or water near a residence is contaminated with atrazine.

Can I file an atrazine lawsuit if my family member passed away from Parkinson's disease?

Yes. Family members who have lost a loved one to Parkinson's disease after atrazine exposure may be able to file a wrongful death atrazine lawsuit. The best way to determine if you qualify is to consult with an experienced atrazine attorney.

Has the EPA banned atrazine?

No. Atrazine has not been banned by the Environmental Protection Agency. It is classified as a “restricted use pesticide,” meaning the herbicide must be used by or under the supervision of a certified applicator. Despite the November 2025 IARC classification and the bans in more than 60 other countries, atrazine remains in widespread use in the United States.