[GAN]

Good thread.

The EPA has some results for Radon. >> https://www.epa.gov/radiation/radiation-sources-and-doses#tab-2. Is it a crisis, most likely not. No doubt with newer construction and mandated energy codes exposure goes up. Dwellings have gone form 9 to 12 air exchanges an hour down to 5, 3 or 2. Less air exchanges the more prevalent any chemical, CO, off gassing, etc. will affect anyone.


Dispelling the dis-information. >>> https://www.livescience.com/39546-radon.html


The possible concentrations seem to be the issue, not the exposure itself. Illinois mandate passive radon system installation in every new home. You will have a hard time selling an existing home that does not pass. I sold a 14 year old home first of this year. Completely dry basement, old open sump crock, basement floor not sealed around the edges, cracked never used tub rough box in the basement. Tested high. So to complete the sale we had a mitigation system installed. Which of course once tested high had to be installed by a licensed company. Easy install since the basement was not finished. Total cost just under $900.00.


Now, nothing mandates a test to verify levels were reduced after the installation, Hmm how safe is it? The installer missed sealing a portion of the floor behind the washer & dryer (to lazy to pull it out), missed sealing around the edges of the tub rough box, Checked the power connection to an overhead junction steel junction box. The fed a 12/2 W ground into the box without a romex connector or bushing. Exposing the NMS cable to damage. Guess who came back after I screamed at the realtor who suggested the company to make corrections.

 

[GAN]

Well one of my regional State Inspectors who used to work in the field for many years as a plumber & insulator had to get out of the field and go to inspecting full time as he was diagnosed with Asbestosis.

Still around but with much less lung capacity.

 

[GAN]

Naw, never at a Dr. Office, after all they are trained professionals right????

 

[GAN]

That's the "Active" Radon System.

In Illinois currently and for the past several years, in new construction a passive system is mandated. Testing is not.

Should a buyer or bank want a test and the test results still show high with the passive system it can easily be converted by a licensed installer to an active system.

The best part is once it is active it is not mandated to test again to prove the active system is working or at what percentage the conversion reduced the gas.