Understanding Secondary Asbestos Exposure
Secondary asbestos exposure—also called take-home or para-occupational exposure—occurs when family members are exposed to asbestos fibers carried home by workers on their clothing, hair, skin, or equipment.
This form of exposure has been linked to mesothelioma and other asbestos-related diseases, particularly in wives and children of asbestos workers who never worked directly with the material themselves.
How Secondary Exposure Happens
Asbestos fibers are microscopic and can cling to virtually any surface. Workers who handled asbestos-containing materials often brought fibers home without realizing the danger they posed to their families.
Common Exposure Pathways
Laundering work clothes: When contaminated clothing is washed, asbestos fibers become airborne or contaminate water and washing equipment. Historically, wives who handled laundry were frequently exposed.
Physical contact: Hugging a family member before they changed clothes or showered could transfer fibers directly to skin and clothing.
Household dust: Fibers settling on carpets, furniture, and surfaces could be repeatedly disturbed during cleaning, exposing anyone in the home.
Shared vehicles: Workers who drove home in contaminated clothing left fibers in car seats and interiors.
Equipment storage: Tools and work gear stored at home released fibers over time.
Even a single significant exposure can lodge fibers in the lungs, where they may cause disease decades later. There is no known safe level of asbestos exposure.
Who Is at Risk
People most likely to have experienced secondary asbestos exposure include:
Immediate Family Members
- Spouses and partners of workers who handled asbestos daily
- Children who had close contact with working parents
- Other household members living with asbestos workers
Family Members of High-Risk Workers
Workers in certain occupations brought home more asbestos fibers:
| Industry | Common Jobs |
|---|---|
| Construction | Insulators, drywall workers, roofers |
| Shipbuilding | Shipyard workers, Navy personnel |
| Manufacturing | Factory workers, millwrights |
| Automotive | Mechanics, brake repair technicians |
| Power plants | Boiler workers, pipefitters |
| Mining | Asbestos miners, millers |
When Exposure Occurred
Secondary exposure was most common from the 1940s through the 1970s, when asbestos use was at its peak and safety regulations were minimal. However, exposure continued into later decades as asbestos remained in existing buildings and products.
Impact on Women
Secondary exposure disproportionately affects women. Research indicates that household exposure accounts for a substantial portion of mesothelioma cases in women—one study suggests up to 91% of cases in women without direct occupational exposure may be attributed to this pathway.
This disparity reflects historical gender roles: women traditionally handled laundry and spent more time at home where contaminated clothing and dust accumulated.
Health Risks
Asbestos fibers inhaled through secondary exposure can cause the same diseases as direct occupational exposure:
Mesothelioma: Cancer of the lining of the lungs, abdomen, or heart. The latency period is typically 20–50 years after exposure.
Lung cancer: Asbestos exposure increases lung cancer risk, especially in combination with smoking.
Asbestosis: Scarring of lung tissue that causes breathing difficulties. Usually requires heavier exposure than secondary contact typically involves.
The amount of exposure from take-home contact was generally lower than direct occupational exposure, but even small amounts of asbestos can be harmful.
Symptoms to Watch For
If you may have been exposed to asbestos secondarily, be aware of symptoms that could indicate asbestos-related disease:
- Persistent shortness of breath
- Chest pain or tightness
- Chronic cough
- Unexplained weight loss
- Fatigue
- Difficulty swallowing
- Abdominal swelling or pain (peritoneal mesothelioma)
Symptoms may not appear until decades after exposure. If you experience these symptoms and have a history of secondary exposure, inform your doctor about your exposure history.
What to Do If You Were Exposed
Talk to Your Doctor
If a family member worked with asbestos, mention this during medical appointments. Your doctor should know about potential exposure even if you have no current symptoms.
Depending on your exposure history and symptoms, your doctor may recommend:
- Chest X-ray or CT scan to check for abnormalities
- Pulmonary function testing
- Ongoing monitoring
No routine screening protocol exists for asbestos-exposed individuals without symptoms, but awareness of your exposure history helps ensure appropriate evaluation if symptoms develop.
Document Your Exposure
Recording your exposure history can be important for medical care and potential legal claims:
- The family member who worked with asbestos
- Their employer(s) and job title(s)
- The time period of exposure
- How you came into contact with their work clothes or equipment
- Any other family members who may have been exposed
Legal Options for Secondary Exposure
Family members who develop mesothelioma or other asbestos diseases from secondary exposure may have legal options for compensation. Courts have recognized that asbestos manufacturers had a duty to warn about take-home exposure risks.
Potential Compensation Sources
Asbestos trust funds: Many bankrupt asbestos companies established trust funds to compensate those affected, including those with secondary exposure.
Lawsuits: Claims against companies that manufactured asbestos products or failed to warn about take-home risks.
Workers’ compensation: Generally does not cover secondary exposure since the affected person was not an employee.
Documentation linking your illness to a specific worker’s occupation and the products they encountered strengthens legal claims.
Preventing Secondary Exposure Today
Asbestos remains in many older buildings and products. Workers who encounter asbestos during renovation, demolition, or maintenance should take precautions:
At work:
- Follow all safety protocols
- Wear appropriate protective equipment
- Use decontamination facilities before leaving work sites
Before going home:
- Shower and change clothes at the worksite when possible
- Keep work clothes separate from personal items
- Transport contaminated clothing in sealed bags
At home:
- Never bring work clothes into living areas
- Wash work clothes separately from family laundry
- Do not allow children near work equipment or vehicles used at job sites
Given my exposure history, what symptoms should I watch for?▼
Watch for persistent shortness of breath, chest pain, chronic cough, unexplained weight loss, and fatigue. These symptoms may not appear until decades after exposure.
Would imaging or other tests be appropriate for monitoring?▼
Depending on your exposure level, your doctor may recommend periodic chest X-rays or CT scans. There is no standard screening protocol, but monitoring may be appropriate for those with significant exposure history.
How often should I have follow-up appointments?▼
This depends on your exposure history and overall health. Your doctor can help determine an appropriate monitoring schedule.
Are there specialists I should see given my exposure history?▼
A pulmonologist (lung specialist) or oncologist with experience in asbestos-related diseases may be helpful, especially if you develop symptoms.
References
International Journal of Cancer. Household Exposure to Asbestos and Risk of Mesothelioma.
https://onlinelibrary.wiley.com/journal/10970215
American Journal of Industrial Medicine. Para-occupational Asbestos Exposure.
https://onlinelibrary.wiley.com/journal/10970274
Journal of Thoracic Oncology. Mesothelioma in Women.
https://www.jto.org/
National Cancer Institute. Asbestos Exposure and Risk.
https://www.cancer.gov/about-cancer/causes-prevention/risk/substances/asbestos