For years, the health risks of burn pit exposure have focused largely on respiratory illness and cancer. However, emerging medical research is now drawing attention to another serious and often overlooked consequence: cardiovascular damage. Studies examining long-term exposure to airborne toxins and fine particulate matter suggest that burn pit smoke may significantly increase the risk of heart disease, stroke, and other circulatory disorders.
For private military contractors who lived and worked near burn pits in Iraq, Afghanistan, Syria, and other overseas locations, this growing body of evidence raises serious concerns. Many contractors are now developing heart-related conditions years after deployment, without realizing that toxic exposure may be a contributing factor.
How Burn Pit Smoke Affects the Heart
Burn pit smoke contained a complex mixture of toxic substances, including fine particulate matter, heavy metals, dioxins, and volatile organic compounds. When inhaled, these particles do not remain confined to the lungs. Research shows that microscopic particles can enter the bloodstream, triggering inflammation throughout the body.
Chronic inflammation is a known contributor to cardiovascular disease. Over time, it can damage blood vessels, promote plaque buildup in arteries, and interfere with normal heart function. Prolonged exposure to burn pit smoke may therefore increase the risk of conditions such as hypertension, coronary artery disease, heart attacks, and strokes.
Why Cardiovascular Damage Often Goes Unnoticed
Heart disease linked to toxic exposure rarely presents immediately. Many contractors return home feeling healthy, only to develop symptoms years later. Chest pain, shortness of breath, fatigue, irregular heartbeat, or unexplained dizziness may initially be attributed to aging, stress, or lifestyle factors.
Because cardiovascular disease develops slowly, the connection to overseas exposure is often missed. Contractors may receive treatment for heart conditions without any discussion of burn pit exposure, delaying both proper diagnosis and the opportunity to pursue compensation under the Defense Base Act.
Contractors Face Higher Exposure Risks
Civilian contractors were frequently assigned to base operations, waste handling, maintenance, and logistics roles that placed them closer to burn pits for longer periods of time. Unlike many military personnel, contractors often lived in housing located near industrial areas or downwind from disposal sites.
Long deployments, repeated exposure, and limited protective equipment increased cumulative toxic intake. Even contractors who were not directly assigned to waste operations were exposed through daily breathing, sleeping, and working in contaminated environments.
The Cardiovascular Conditions Being Studied
Medical research continues to examine the full scope of burn pit-related heart damage. Conditions increasingly discussed in connection with toxic airborne exposure include:
- Coronary artery disease
- Hypertension and vascular inflammation
- Cardiac arrhythmias
- Heart attacks and ischemic heart disease
- Stroke and transient ischemic attacks
While cardiovascular disease is not yet universally recognized as a presumptive burn pit condition, the growing evidence strengthens claims when supported by medical opinions and exposure history.
Defense Base Act Coverage for Heart-Related Illness
The Defense Base Act (DBA) provides workers’ compensation benefits to civilian contractors injured or made ill while working overseas under U.S. government contracts. Importantly, the DBA does not require a condition to appear immediately after exposure.
Contractors who develop cardiovascular disease may qualify for DBA benefits if medical evidence shows that overseas employment contributed to or aggravated the condition. Eligible benefits may include:
- Full coverage of all reasonable and necessary medical treatment
- Wage replacement benefits during periods of disability
- Compensation for permanent impairment
- Survivor benefits if a heart-related condition proves fatal
The DBA also recognizes aggravation of pre-existing conditions. If toxic exposure worsened an underlying heart issue, compensation may still be available.
Why These Claims Are Often Challenged
Insurance carriers frequently dispute cardiovascular claims by arguing that heart disease is age-related, genetic, or lifestyle-driven. They may downplay the role of toxic exposure or require extensive medical proof linking burn pit smoke to the condition.
Because cardiovascular damage often develops gradually, insurers attempt to use delayed onset as a defense. This makes thorough documentation, expert medical opinions, and a clear exposure history essential to a successful claim.
Protecting Contractors From the Long-Term Effects of Toxic Exposure
As medical understanding of burn pit exposure continues to evolve, cardiovascular damage is emerging as one of the most serious long-term risks contractors face. These illnesses can limit work capacity, require lifelong treatment, and place enormous financial strain on families.
The Defense Base Act exists to protect contractors who were exposed to dangerous conditions while supporting U.S. operations overseas. When heart disease or circulatory damage follows deployment, contractors deserve access to medical care and wage protection under the law. Legal guidance can help ensure that claims are properly supported and that insurers are held accountable.
For more information about Defense Base Act protections for burn pit-related cardiovascular conditions, contact Barnett, Lerner, Karsen, Frankel & Castro, P.A.
Disclaimer: This article is for informational purposes only and does not constitute legal advice. Each Defense Base Act claim is unique. For advice specific to your situation, consult a qualified attorney.

