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Radon Testing During COVID-19

Updated: Mar 30, 2020

Radon Testing Hygiene Protocol

In Times of COVID-19 (Coronavirus)

and Similar Contagions

“This Protocol is Guidance Only – Test Professionals / Inspectors must respect & follow local directives pertaining to existing conditions in the jurisdiction of intended services!”

Prepared by: Michael LaFontaine, P.Phys., RSO


Effective 11 March 2020, but a reality for several weeks, the World Health Organization (WHO) declared COVID-19 (Coronavirus) a pandemic, i.e., a worldwide epidemic. According to Merriam-Webster, “a coronavirus is any of a family (Coronaviridae) of single-stranded RNA viruses that have a lipid envelope studded with club-shaped projections, infect birds and many mammals including humans, and include the causative agents of MERS, SARS and COVID-19.”

Most countries have been impacted by this virus to some degree – it overran Asia, marched across Europe, and is now advancing through the Americas. Time will only tell whether the virus is contained and controlled over the course of the coming weeks and months.

Figure 1 – COVID-19


What the Health Experts are Saying

The following is taken directly from the WHO website

Stay aware of the latest information on the COVID-19 outbreak, available on the WHO website and through your national and local public health authority. Many countries around the world have seen cases of COVID-19 and several have seen outbreaks. Authorities in China and some other countries have succeeded in slowing or stopping their outbreaks. However, the situation is unpredictable so check regularly for the latest news.

You can reduce your chances of being infected or spreading COVID-19 by taking some simple precautions that are recommended for all radon measurement and home inspection professionals (italics are the author’s):

  • Regularly and thoroughly clean your hands with a > 60% alcohol-based hand rub / sanitizer or wash them with soap and warm water for at least 30 seconds. Why? Washing your hands with soap and warm water for at least 30 seconds or using alcohol-based hand rub kills viruses that may be on your hands (they destroy the virus’s lipid envelope).

  • Maintain at least 2 metres (6 feet) distance between yourself and anyone who is coughing or sneezing. Why? When someone coughs or sneezes they spray small liquid droplets from their nose or mouth which may contain virus. If you are too close, you can breathe in the droplets, including the COVID-19 virus if the person coughing has the disease.

  • Avoid touching your face, i.e.,eyes, nose, mouth and ears. Why? Hands touch many surfaces and can pick up viruses (viruses can survive in excess of 2 days on surfaces, lifetime varies with temperature, light and humidity). Once contaminated, hands can transfer the virus to your eyes, nose, mouth or ears. From there, the virus can enter your body and can make you sick.

  • Make sure you, and the people around you, follow good respiratory hygiene. This means covering your mouth and nose with your bent elbow or tissue when you cough or sneeze. Then dispose of the used tissue immediately into a covered disposal / waste container. Wash your hands frequently to minimize contamination on surfaces. Why? Droplets spread virus (by as much as 2 metres or in excess of 6 feet). By following good respiratory hygiene you protect the people around you from viruses such as cold, flu and COVID-19.

  • Stay home if you feel unwell. If you have a fever, cough and difficulty breathing, seek medical attention and call in advance. Follow the directions of your local health authority. Why? National and local authorities will have the most up to date information on the situation in your area. Calling in advance will allow your health care provider to quickly direct you to the right health facility. This will also protect you and help prevent spread of viruses and other infections.

  • Keep up to date on the latest COVID-19 hotspots (cities or local areas where COVID-19 is spreading widely). If possible, avoid traveling to places – especially if you are an older person or have diabetes, heart or lung disease. Why? You have a higher chance of catching COVID-19 in one of these areas.

Figure 2 – COVID-19 Doctors & Patient

(Source: World Health Organization names the new coronavirus: Covid-19)

In addition to the above, use a disinfectant wipe (as listed below) to wipe down your cellphone every time you enter or leave a new indoor environment!


The following should become part of your standard radon test / home inspection kit:

  • Vinyl, latex-free, medical examination gloves (lightly powdered preferable) sized to be snug fit on user. Should comply with ASTM 5250 “Standard Specification for Poly(vinyl chloride) Gloves for Medical Application” and/or ISO 13485:2016 “Medical devices — Quality management systems — Requirements for regulatory purposes.” IMPORTANT NOTE – PLEASE DONATE YOUR COMPANIES MEDICAL EXAMINATION GLOVES TO LOCAL HOSPITALS & CLINICS! Please use washable, reusable nitrile-coated or similar safety gloves until PPE supplies are back to normal.

  • Vinyl zip-lock bags – sized to fit the test equipment being used.

  • Abrasion & fluid resistant, anti-slip, polypropylene footwear covers, i.e., “booties.”

  • Disinfectant wipes (Clorox®, Lysol® or similar). *

  • Disinfectant spray (ethyl or methyl or isopropyl alcohol; Lysol® or similar). *

  • Multi-surface cleaner/disinfectant (Clorox®, Lysol®, Pine-Sol® or similar). *

* In accordance with the EPA Viral Emerging Pathogen Policy and

Health Canada’s Viral Emerging Pathogen Policy.

Disclaimer: The author has no commercial or financial interest in any of the mentioned products.

ADVISORY NOTE: The author does not expect anyone will be performing radon tests or doing mitigation work during the COVID-19 pandemic. This guide was designed for tests being performed once the situation get back to something approaching "normal."

Visitation Basics

The following should be basic practice for all radon testers and home inspectors:

1. HEALTH & SAFETY FIRST – Protect yourself and protect your clients; if in doubt, don’t deploy or retrieve test devices. Limit sites visited to 1 per day.

2. If you’re coughing, sneezing, or feeling sick and feverish DON’T go to your client’s home or building (Note:If you have “smoker’s cough” or allergies, this may still be the best course of action.). Arrange for a healthy co-worker to take your place or reschedule. Meanwhile, call your local telehealth or health authorities, family physician, etc., and if appropriate, arrange for a COVID-19 screening test.

3. Contact your client prior to your appointment and confirm whether any occupants of the location to be visited are sick, coughing or sneezing, and if so, have they tested positive for COVID-19. If the answer is yes, delay your visit until such time as occupants are healthy and the building has been disinfected.

4. DON’T HYPE HYSTERIA! Don’t panic your client by turning up in full hazmat gear – booties and gloves will suffice. **

5. Prior to entering building:


b. Inform the occupants that they should not be present in the same room as you, but if they are, they must maintain at least 2 metres (6 feet) distance between themself and you.

c. For Deployment: Put on gloves, then cover footwear with booties.

d. For Retrieval: Put on gloves, then cover footwear with booties. Bring in vinyl zip-lock bags as per Essentials above to bag the devices being retrieved.

Device Deployment

Once you have your protective wear on as per 5b above, enter the premises and deploy devices as per your standard operating procedures.

Device Retrieval

After you have donned your protective wear and have your additional supplies as per 5c above, enter the premises and retrieve your devices as per your standard operating procedures with the following additional steps:

1. Wipe the outer surfaces of the deployed devices with a disinfectant wipe as listed in Essentials above (Notes: 1) Electret Ion Chambers should be placed in the “closed” configuration. 2) Charcoal devices should have lids/covers secured before wipe-down. 3) DO NOT perform electret voltage readings NOR analyse the results from other monitoring devices at the client’s site.). See Figures 3 & 4.

Figure 3 – Wiping CRM (Source: Radon North)

Figure 4 – Wiping ATD (Source: Radon North)

2. Seal “clean” devices into zip-lock bags after thorough wiping with disinfectant wipes. See Figure 5.

Figure 5– Devices Packed in Zip-Lock Bags

(Source: Radon North)

Affix a label to each bag, indicating:

a) Contents have been wiped with a disinfectant in compliance with the EPA Viral Emerging Pathogen Policy and / or Health Canada’s Viral Emerging Pathogen Policy, or your jurisdiction’s equivalent.

b) Date (dd/mm/yyyy)

c) Your signature.

3. Place used disinfectant wipe(s) into spare zip-lock bag and remove gloves as follows:

Figure 6 – Left Glove Removal Start (Source:Radon North)

Figure 7 – Right Glove Removal Start (Source:Radon North)

Figure 8 – Right Glove Removal Finish (Source:Radon North)

Figure 9 – Left Glove Removal Finish (Source:Radon North)

Figure 10 – Gloves & Wipe(s) Bagged (Source:Radon North)

4. Place used gloves into zip-lock bag with used disinfectant wipes.

5. Exit building. Remove booties by pulling down on the elastic cuff above the heel (using thumb and forefinger). Place both in a spare zip-lock bag.

6. Spray all zip-lock bags with disinfectant spray and place in tote box. Place in vehicle.

7. Spray clothing and hands with disinfectant spray. DON’T TOUCH YOUR FACE until after you’ve washed your hands as per page 1.

8. Return to office. Process all devices as per usual (Note: Devices being sent to a lab for analysis should not be removed from their sealed zip-lock bags.).

9. Discard the zip-lock bags containing the used disinfectant wipes, gloves and booties into a covered disposal bin/ waste container.

10. Clean tote with multi-surface cleaner/disinfectant. Change out of your work clothes (place used ones in a wash bag to be laundered separately), wash your hands as per page 1 and shower thoroughly when you get home.

** Addenda Regarding Face Masks **

(Why they’re not listed under “Essentials”)

According to medical doctors on the ground, the surgical masks (typically blue outside, white towards face) being purchased by the general public, WILL NOT protect the wearer from COVID-19. These masks, which feature a flexible metal strip for contouring the top of the mask to the nose, and elastic loops for securing the mask to the wearer’s ears; are not hermetically sealed to the wearer’s face. i.e., they are ineffective protection against small aerosolized respiratory droplets – one of the primary delivery vectors for COVID-19. These masks are also ineffective for wearers with beards.

Masks should only be worn by those general public individuals who are exhibiting symptoms of COVID-19 or test positive for COVID-19; and then, to prevent the infection of others.


The endorsements, reviews and comments provided by the individuals listed, are those of the individuals

and do not necessarily reflect the policies or views of their respective affiliations.

The author is grateful to all reviewers for their endorsements, insights and comments; in particular (in order of feedback):

1. William J. Angell, Professor Emeritus, College of Design, University of Minnesota & Past-Director, Midwest Universities Radon Consortium; Chair, Prevention and Mitigation Working Group, International Radon Project, World Health Organization; Past President, American Association of Radon Scientists and Technologists,

2. Shawn Price, Director of Laboratory Operations - Spruce Environmental Technologies, Inc.; Past President, American Association of Radon Scientists and Technologists,

3. Nathaniel L. Burden, Jr., PA AARST Chapter President, radon scientist/consultant

4. Jim F. Herrold, CHP, Research Safety Specialist/Radiation Safety Officer - University of Wyoming, Office of Research & Economic Development; US TAG Chair - ISO TC 85/SC 2 “Radiological Protection”; ANSI/ASTM/HPS

5. Alan J. Whitehead, President & CEO - Radon Environmental/Radon Corp; President, Canadian Association of Radon Scientists and Technologists,

6. Leo Moorman, Ph.D., Radon Home Measurement and Mitigation, Inc., Fort Collins, CO

7. Gary Hodgden, ANSI/AARST/EPA Consortium Assist

8. Alexandra Stieff-Davis, Manager & Radon Specialist - Rad Elec, Inc.

9. Bill Field, Ph.D., MS, Deputy Director - Heartland Center for Occupational Health & Safety; Professor, Department of Occupational and Environmental Health, Department of Epidemiology, College of Public Health, University of Iowa

10. Lorin Stieff, Technical Specialist - Rad Elec, Inc.

11. Darioush T. Ghahremani, Ph.D., Environmental Scientist - Tetco & RSS, Inc.

12. Kyle Hoylman, Managing Partner - Protect Environmental

13. Kevin M. Stewart, Director - Environmental Health Advocacy and Public Policy, American Lung Association A

And my toughest critic and major booster – my wife, Ildiko!

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