Radon Action Month: Time to test your workplace for Radon

Radon Testing in the Workplace: Why January’s Radon Awareness Month Matters

Every January, Radon Awareness Month shines a spotlight on an invisible but serious health risk that affects homes and workplaces alike. Radon is a naturally occurring radioactive gas that cannot be seen, smelled, or tasted—yet it is one of the leading causes of lung cancer worldwide. While much of the conversation around radon focuses on residential exposure, the workplace is an equally important environment where radon testing and mitigation can protect health, ensure compliance, and demonstrate a commitment to employee safety.

This article explores what radon is, why workplace radon testing matters, legal and regulatory considerations, testing methods, mitigation strategies.

Understanding Radon: The Invisible Workplace Hazard

Radon is a radioactive gas produced by the natural breakdown of uranium in soil, rock, and water. As it forms, radon can move through the ground and enter buildings through cracks in foundations, construction joints, gaps around pipes, sump pits, and other openings. Once inside, radon can accumulate—particularly in lower levels such as basements and ground floors.

What makes radon especially dangerous is its invisibility. Employees can be exposed for years without knowing it. When radon is inhaled, radioactive particles can damage lung tissue, increasing the risk of lung cancer. According to health authorities, radon is the second leading cause of lung cancer after smoking and the leading cause among non-smokers.

Workplaces where people spend 8 or more hours a day can contribute significantly to cumulative radon exposure, making testing and mitigation a critical occupational health consideration.

Why Radon Testing in the Workplace Is Essential

1. Protecting Employee Health and Safety

Employers have a fundamental responsibility to provide a safe working environment. Chronic radon exposure can pose a serious long-term health risk, particularly for employees working in:

• Basements or ground-floor offices
• Schools and daycare centers
• Healthcare facilities
• Industrial buildings and warehouses
• Government buildings
• Older or poorly ventilated structures

Testing is the only way to know if radon levels are elevated. Without testing, employees may unknowingly face increased cancer risks over time.

2. Legal and Regulatory Considerations

Radon regulations vary by country, state, and region. In many jurisdictions:

• Employers are required to assess indoor air quality risks
• Specific radon action levels are established
• Testing is recommended or required for public buildings and schools
• Employers may be liable if known hazards are ignored

Even where testing is not legally mandated, failure to address elevated radon levels could expose organizations to legal liability, workers’ compensation claims, or reputational damage.

January’s Radon Awareness Month provides an ideal opportunity for employers to review compliance obligations and proactively address radon risks before they become legal or health issues.

3. Demonstrating Corporate Responsibility

Employees increasingly expect their employers to prioritize health, wellness, and environmental safety. Radon testing demonstrates:

• Commitment to occupational health
• Transparency and proactive risk management
• Alignment with Environmental, Social, and Governance (ESG) goals
• Trust-building with staff, clients, and regulators

Addressing radon is not just a safety measure—it’s a statement about organizational values.

Radon in Different Types of Workplaces

Radon can affect nearly any building, but certain workplaces face higher risks due to their design, location, or usage.

Office Buildings

Modern office buildings may appear airtight and energy efficient, but reduced ventilation can actually allow radon to accumulate. Ground-floor conference rooms, storage areas, and below-grade offices are particularly vulnerable.

Schools and Childcare Facilities

Children are especially sensitive to environmental health risks. Many schools are built on large land areas with extensive foundations, increasing radon entry points. Testing during Radon Awareness Month is especially important for educational institutions.

Healthcare Facilities

Hospitals and clinics often have basements, imaging rooms, and long-term occupancy, making radon testing essential for protecting both patients and staff.

Industrial and Commercial Buildings

Warehouses, manufacturing plants, and retail spaces may have large slab foundations and limited ventilation, increasing the possible exposure to Radon.

When and How to Test for Radon in the Workplace

When to Test

Radon testing can be conducted at any time of year, but winter months—when buildings are closed and ventilation is reduced—often yield the most accurate worst-case readings. That makes January an ideal time to test.

Testing is recommended:

• Before occupancy of a new building
• After renovations or HVAC changes
• Every 2–5 years, depending on guidelines
• When occupancy patterns change
• If neighboring buildings have high radon levels

Types of Radon Tests

Short-Term Testing

• Duration: 2–7 days
• Common devices: Charcoal canisters, continuous radon monitors

Short-term tests are often used during Radon Awareness Month to quickly identify potential issues.

Long-Term Testing

• Duration: 90 days to 12 months
• Provides a more accurate annual average
• Ideal for confirming radon levels and guiding mitigation decisions

For workplaces, long-term testing is often recommended after an initial short-term test indicates elevated levels.

Professional vs. DIY Testing

While do-it-yourself radon test kits are available, workplaces often benefit from professional radon testing services. Certified professionals can:

• Design a testing plan tailored to the building
• Place monitors in appropriate locations
• Interpret results accurately
• Provide documentation for compliance and records

For larger or public buildings, professional testing is strongly recommended.

Understanding Radon Test Results

Radon levels are measured in picocuries per liter (pCi/L).

Most health authorities recommend action if radon levels are:

• 4.0 pCi/L (148 Bq/m³) or higher

However, there is no truly “safe” level of radon. Even lower levels may still pose health risks over long periods.

If test results exceed recommended action levels, mitigation should be planned and implemented as soon as reasonably possible.

Radon Mitigation in the Workplace

The good news is that radon can be effectively reduced in most buildings. Mitigation strategies depend on building design and radon entry points.

Common Radon Mitigation Methods

• Sub-slab depressurization: The most common and effective method, using pipes and fans to redirect radon gas away from the building
• Improved ventilation: Increasing air exchange to dilute radon concentrations
• Sealing cracks and openings: Reduces radon entry but is usually supplemental
• HVAC system adjustments: Balancing pressure and airflow

Professional mitigation systems can reduce radon levels by up to 99%.

Post-Mitigation Testing

After mitigation, follow-up testing is essential to confirm effectiveness. Ongoing periodic testing ensures that systems continue to function properly over time.

Using Radon Awareness Month to Take Action

January’s Radon Awareness Month is more than an educational campaign—it’s an opportunity for workplaces to take meaningful steps toward safer indoor environments.

Practical Steps for Employers

1. Educate employees about radon risks and health impacts
2. Schedule workplace radon testing
3. Review past test results and mitigation records
4. Develop a radon action plan
5. Communicate results transparently with staff
6. Budget for mitigation if needed

Even a simple awareness email or safety meeting can spark important conversations and encourage proactive testing.

Communicating About Radon with Employees

Transparency is key. Employers should communicate:

• Why radon testing is being conducted
• What the testing process involves
• How long it will take
• What results mean
• What steps will be taken if levels are elevated

Clear communication reduces anxiety and reinforces trust. Employees are more likely to support safety initiatives when they understand the purpose and benefits.

The Long-Term Benefits of Workplace Radon Testing

Radon testing and mitigation offer benefits far beyond regulatory compliance:

• Reduced long-term health risks
• Improved indoor air quality
• Enhanced employee morale and trust
• Lower liability exposure
• Positive organizational reputation

By addressing radon, employers invest in both people and performance.

Make January the Month You Act

Radon may be invisible, but its health impacts are real and well-documented. During January’s Radon Awareness Month, employers have a timely opportunity to evaluate workplace radon risks, educate employees, and take action where needed.

Testing is simple, mitigation is effective, and the potential benefits—healthier employees, safer buildings, and peace of mind—are substantial. Whether you manage a small office, a school, a healthcare facility, or a large industrial site, radon testing should be a key part of your workplace safety strategy.

This January, don’t let radon remain an unseen threat. Awareness leads to action—and action saves lives.

Call CIE Inspections to discuss testing your workplace today.  775.507.3383

Ty Kirkpatrick, NRPP Certified Radon Measurement Provider certification #104857-RMP and Multi-Family Measurement Certificate(MFM)