Radon Videos

Radon Video from Spruce

I get a lot of requests to post other people’s content on my blog. As MY blog, I usually just post MY stuff. I’m making an exception today because I came across a video about radon that was very well done. The graphics are great and it does a good job of explaining radon and radon mitigation. The video takes some artistic liberties, but all in all, a good intro video to radon.


Radon Resources

Each month we publish a newsletter titled IAQ Website of the Month.  The excerpt below was originally published in the August 2009 newsletter.

The 2009 International Radon Symposium will be held in St. Louis September 20-23. But did you know that most research papers presented at past Symposia are provided for free at the website for the American Association of Radon Scientists and Technologists (AARST)?

Past research papers are all conveniently located on one page of the AARST website. To give you a sense of scale, I stopped counting at 300 research papers listed on the site. Here are a few that I found interesting:

To view all the past technical and research papers, click on the following link: AARST Radon Research Papers. The Google search bar at the top of the page allows you to search the entire database of papers.

While you are at the AARST’s website, you can also download their latest newsletter by visiting Radon Reporter.

To subscribe to this newsletter click the following link: IAQ Website of the Month.

IAQ Website of the Month

The Top Radon Website

Each month we publish a newsletter titled IAQ Website of the Month.  The excerpt below was originally published in the September 2010 newsletter.

I try to be an equal opportunity educator who highlights all the major IAQ contaminants. Admittedly, radon has received minimal attention in my newsletter, so this month I set things straight.

When it comes to radon websites, one stands head and shoulders above the rest. Three of the most recognized radon organizations (EPA, AARST, CRCPD) created a portal that does it all.

The following sections of the website provide excellent information:

Scientific papers on radon from leading journals
Latest radon news
Miscellaneous radon publications

The site also maintains a good discussion forum, but that requires registering on the site. The registration is free but a little time consuming.

If you are thinking about getting into radon assessment or mitigation work, check out the website’s listing of states with licensing requirements.

To visit this month’s featured website, click:

To subscribe to this newsletter click the following link: IAQ Website of the Month.

Have Ian, the indoor air nerd, consult on radon issues in your home. Visit the Radon Testing page of our website for more information.


Do you know your state’s radon regulations?

Some indoor air quality contaminants are regulated on a federal level, others on a state level, some a combination of the two, and others have no regulations whatsoever.  This poses a tricky problem for anyone working in the field of indoor air quality.

Radon is a great example of a contaminant regulated at the state level.  For professionals working in multiple states, it can be maddening to wade through the various requirements and regulations.  I’ve always been on the lookout for a comprehensive list of state radon laws.  I even toyed with building one myself, but that would be a month worth of work.

You can imagine my elation when I came across a fully compiled list of all the state regulations!  Credit goes to Betsy Janes of the Northern Kentucky Radon Coalition who posted the list to (September’s IAQ Website of the Month).

Check out this law in my state of Illinois:

It is a misdemeanor to misrepresent the capabilities of a device for detecting and measuring radon or radon progeny.

You can attempt to sell a Senate seat in Illinois and not get convicted, but darned if you misrepresent the capabilities of a continuous radon monitor in our great state!

To see the full list of radon laws, visit this page on the radon leaders website:  The list was compiled in August of 2009 so it may not be 100% up to date.  Always check with your state’s radon office for the latest regulations.

If you know of any new radon laws, please leave a comment below!

IAQ Website of the Month

An ounce of prevention…

Each month we publish a newsletter titled IAQ Website of the Month. The excerpt below was originally published in the August 2010 newsletter.

Have you ever asked a doctor about an indoor air quality problem? Let’s just say their knowledge is typically lacking. However, some interesting initiatives are educating healthcare providers and public health professionals on the importance of IAQ.

The American College of Preventive Medicine launched an entire website dedicated to Indoor Air Quality thanks to a grant from the EPA’s Indoor Environments Division. The site allows users to view a few free webcasts. I would recommend the following:


Radon on the Map

Radon is a radioactive soil gas that is the leading cause of lung cancer in non-smokers according to the EPA.  The US Surgeon General issued a Health Advisory a few years ago to warn the public about radon’s health risks.  To read more about the health effects of radon, you can visit the EPA’s website.  In this blog post I want to discuss how radon levels vary geographically.

Radon is a decay product of radium (which, in turn, is a decay product of uranium).  Because uranium is found in the soil at different levels throughout the world, radon concentrations vary quite widely.  A few maps are publicly available that display the average radon levels throughout the US.  The problem with these maps is that the average concentrations are for an entire county or region.  Your home, school or office may be in a neighborhood with levels significantly higher or lower than the region’s average.

Nevertheless, I think that radon maps can be a useful tool to understand the geographic trends.  Here are the three radon maps in the US that I like to reference: