Documented Health Risks
Health Effects.
The Human Cost.
Potential health impacts of chemicals identified in atmospheric programs, drawn from peer-reviewed research, government toxicological profiles (ATSDR, EPA, CDC/NIOSH), and reported symptoms under investigation by our coalition.
About This Information
The health effects described below are drawn from publicly available government toxicological profiles (ATSDR, U.S. EPA, CDC/NIOSH) and peer-reviewed scientific literature. These sources describe known health risks at specific exposure levels documented in occupational, environmental, and clinical settings. This information is presented for educational purposes only and does not constitute medical advice, diagnosis, or an assertion that any individual has been exposed to harmful levels. Our legal and scientific coalition is independently evaluating whether exposure at levels relevant to atmospheric programs may pose health risks in affected communities.
- Aluminum nanoparticles are capable of crossing the blood-brain barrier, according to peer-reviewed research.[ATSDR]
- A 2025 Wiley meta-analysis links chronically elevated brain aluminum levels with increased risk of Alzheimer's disease pathology.[Wiley]
- ATSDR notes that exposure to high levels of aluminum may result in neurological problems, including cognitive impairment.[ATSDR]
- Chronic neuroinflammation and oxidative stress in neural tissue have been documented in occupational exposure studies.[ATSDR]
- Barium ingestion at high levels can cause hypokalemia — dangerously low potassium — leading to cardiac arrhythmia.[ATSDR]
- ATSDR documents that high barium exposure may cause increased blood pressure, difficulty breathing, and changes in heart rhythm.[ATSDR]
- Severe cases may involve skeletal muscle weakness and respiratory paralysis, per ATSDR toxicological review.[ATSDR]
- The EPA states short-term SO2 exposure can harm the respiratory system and make breathing difficult, particularly for asthmatics.[U.S. EPA]
- Chronic exposure to sulfur dioxide is associated with permanent reductions in lung function according to EPA assessments.[U.S. EPA]
- ATSDR notes that workers who breathe large amounts of aluminum dusts can have lung problems including respiratory fibrosis.[ATSDR]
- Children, elderly, and immunocompromised individuals are disproportionately affected by airborne irritants according to EPA data.[U.S. EPA]
- ATSDR confirms that strontium can replace calcium in bone tissue, impairing skeletal integrity.[ATSDR]
- High levels of stable strontium may impair bone growth in children, per ATSDR toxicological profile.[ATSDR]
- Strontium enters the food chain through contaminated soil and water, with potential for bioaccumulation.[ATSDR]
Citations & References
“Short-term exposures to SO2 can harm the human respiratory system and make breathing difficult. People with asthma, particularly children, are sensitive to these effects.”
“Ingesting high levels of barium can cause difficulty breathing, increased blood pressure, changes in heart rhythm, stomach irritation, muscle weakness, and damage to the liver, kidney, heart, and spleen.”
“Exposure to high levels of aluminum may result in respiratory and neurological problems. Workers who breathe large amounts of aluminum dusts can have lung problems.”
“Strontium can replace calcium in bone. High levels of stable strontium may impair bone growth in children.”
“Peer-reviewed meta-analysis linking chronically elevated brain aluminum levels with increased risk of Alzheimer's disease pathology.”
Believe You May Have Been Affected?
If you believe you or your family may have experienced unusual environmental exposure or related health symptoms, you may be eligible to have your situation reviewed by our legal and scientific team. Each case will be evaluated based on available evidence, medical documentation, and applicable law.
The GeoFight is an initiative of 4GFC, a registered 501(c)(3) nonprofit organization. Health information on this page is sourced from publicly available government toxicological profiles (ATSDR, U.S. EPA, CDC/NIOSH) and peer-reviewed scientific literature cited above. This content is for educational and informational purposes only. It does not constitute medical advice, diagnosis, or treatment. Always seek the advice of a qualified health provider with any questions regarding a medical condition. Contact or submission of information does not create an attorney-client relationship. Donations are tax-deductible to the extent permitted by law.