C-4-110 - Addressing Radon Decay Products - Another Tool in the Tool Box (CERTI-324)

This course, approved by the NRPP for 4 educational CE credits, expands the radon measurement professional's skills beyond testing residential structures to be able to take advantage of the expanding market of conducting surveys in large buildings such as schools and apartment buildings.Testing large buildings entails a lot more than taking using more test devices. It is necessary to be able to convey to the client why multiple locations need to be tested; be able to implement communication plans for occupants; and to understand special approaches to interpreting results to provide the best value to the client while shielding you from downstream liabilities.This course, recorded at a live classroom session at the National Radon Conference in Vancouver in April, 2015 deals with all of these issues and more. It also provides sample notices, log sheets and other tools you will need to fully implement a large survey.  You will be able to watch and listen to the lecture as well as benefit from the poignant questions posed by the live audience, consisting of radon professionals just like you.
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It is well known the mechanism by which radon exposure increases the potential of lung cancer is alpha release from the short-lived decay products of radon and the amount of these decay products available for respiration can vary due to air circulation rates, particulate levels, etc.  This course explores from a practical standpoint how radon decay products are measured and how RDP reduction can enhance soil gas remediation by reducing radon risks to very low levels.

This course was presented at the request of the Canadian Association of Radon Scientists and Technologists at its Annual Meeting in Banff, Alberta on April 23, 2017.  Although provided to a Canadian audience it has application for radon professionals around the world.

Note: your name, email address and an indication of passage of this course may be shared with national or state certification agencies for verification of completion.

Course Includes:

  • Video Instruction
  • Online Quizzes
  • Downloadable Resources
  • Downloadable Course Certificate
  • 4 Category 1 CE Credits


Tuesday, 13 September 2022
Dennis said:

Overall course was informative

Chris Capron
Thursday, 08 September 2022
Michael said:

The course was very well laid out and easy to navigate. Very satisfied with overall course!

Thursday, 25 August 2022
Lyndsey said:

Thank you

Tuesday, 12 January 2021
Evenor said: Excellent course.  Possibly the best radon CEU course that I have taken.  Lots of new good information.
John D. Thacker
Sunday, 03 January 2021
Eli said: Great course. Thank you!
Kevin Thompson
Monday, 28 December 2020
Dain Standfast
Tuesday, 24 November 2020
Brian said:

Very good course.

Marc Rocca
Friday, 03 July 2020
Kanokwan said: I recommend 5/5
Paris Partridge
Wednesday, 29 April 2020
Anthony said: I recommend 5/5
Wednesday, 25 March 2020
Jeffrey said:

Great review of known facts.   I learned more about RDP's and can converse with others better than before.

Alison Eliot
Wednesday, 12 February 2020
William said: I recommend this course 5/5
Steve Willis
Tuesday, 28 January 2020
Kaitlyn said: I would recommend
Larry McDaniel
Thursday, 19 December 2019
Andrew said:

It was really interesting information that was well presented!

Michael Erwin
Monday, 04 November 2019
JEREMY said:

Very easy to use.

James Tyler Shull
Saturday, 31 August 2019
Michael said:

very informative 

Joyce Hix
Thursday, 22 August 2019
Chris said:
Jacob Morris
Tuesday, 30 July 2019
Brett said:

Question 18 answer is wrong. The explanation is inconsistent and the formulas incorrect.

christopher burrill
Thursday, 27 June 2019
Steve said: I recommend this course 5/5
Monday, 17 June 2019
Dan said:

very informative

Michael Benner
Tuesday, 21 May 2019
Steven said:

Well presented, learned some new things. 

Ronald Moraski
Sunday, 19 May 2019
Luc said:

Very good information

Donn Anderson
Saturday, 30 March 2019
Ryan said:

The Course Material were excellent training for understanding Radon Decay! The quiz was relevant to the questions! Thanks for the education, the course gets better every time and very informational.

Thursday, 28 March 2019
Todd said:

Very good technical course and well structured from start to finish.  Did an excellent job providing the information in a way that makes it easy to grasp.  Thought the quiz was challenging, but suited the content of the class well.  Definitely have to understand the course material/presentation in order to pass the quiz.

Carrie Friedline
Sunday, 28 October 2018
Steve said:

Pretty technical

Philip True
Saturday, 27 October 2018
Edgar said: I recommend 5/5
Silly Sally
Thursday, 04 October 2018
Jennifer said:
Leonel Velazquez
Thursday, 04 October 2018
Jennifer said: I recommend 5/5
Leonel Velazquez
Sunday, 23 September 2018
Craig said: I recommend
Wednesday, 19 September 2018
Janice said:

Good intro course for RDPs. Basic but use a few equations.

Nick Mescher
Sunday, 16 September 2018
Kenny said:

Awesome course! I didn't realize how much air movement and filtering would help. It appears that air movement causes more plating out and filtering captures some of what hasn't plated out.The info is as the course topic suggest, Another Tool in the Tool Box. I cant keep up with Doug and his math conversions to WL since we rarely use it here in the US. I'm going to start paying more attention to these issues while doing Building Investigation and suggestions for repairs.

Robert E. Heilig
Wednesday, 29 August 2018
John said:

very good

Gary Mensen
Wednesday, 15 August 2018
Eric said:

Interesting content and the dose of radiation actually exposed to.

Michel Ramirez
Thursday, 19 July 2018
John said:

Good Course

Julie K Nash
Thursday, 12 July 2018
John said:

Excellent course. 

Hunter Delano
Sunday, 01 July 2018
Jeffrey said:

Informative and succinct

Kyle Bosworth
Tuesday, 12 June 2018
Michael said:

Mr. Kladder is always informative and his presentations are easily understood.

Tim Knight
Wednesday, 23 May 2018
Brian said:

This course was well documented and helpful toward my working knowledge in the professional radon field.

Jeremy P Ling
Monday, 21 May 2018
Lisa said:

Great teacher!  Really appreciate the extra material and the explanations provided for each quiz question.  More quiz questions would even be better!

Scott Blake
Friday, 18 May 2018
Dennis said:

Excellent course.

Sandy Prior Thomas
Sunday, 08 April 2018
Vickie said:

I'm so glad that I took this class!   Doug Kladder describes radon decay products in a way that I understood it so much better than I did before!  I now understand working levels, and how the products attach to dust...and how air filtration and air movement can affect the RDPs.  

Jim Swing
Sunday, 08 April 2018
Vickie said:

I'm so glad that I took this class!   Doug Kladder describes radon decay products in a way that I understood it so much better than I did before!  I now understand working levels, and how the products attach to dust...and how air filtration and air movement can affect the RDPs.  

Jim Swing
Friday, 30 March 2018
Charles said:

I enjoyed the course because when I put the time and money into taking one, I want to learn something.  It was both informative and thought provoking.  As you said...another tool for the tool box.

Joe Hartman
Saturday, 24 February 2018
Matthew said:

Very informative, Speakers of course well spoken and I definately felt prepared for the course quiz

Zachariah Ayers
Thursday, 01 February 2018
Paul said: I would recommend this course
Michael Fagnan
Thursday, 01 February 2018
Craig said:

Interesting course.  Its good to learn new information.

Michael Weston
Thursday, 25 January 2018
Rachel said: I recommend this course 5 out of 5
Thursday, 18 January 2018
Mark said:
Lindsay Hill
Sunday, 10 December 2017
Joseph said: I recommend this course 5/5
Friday, 17 November 2017
Thomas said:

Once again... Thank You Doug for recommending this course.

This was probably the most enlightening and behind the scenes look at understanding the overall Health risk of Radon and the most in depth description of what exactly is going on and how to reduce the risk and mitigate the problem....Thank you!

Merlin Smith
Friday, 17 November 2017
Anthony said:

Very Interesting. I've been testing for radon for eight years now and I definitely learned something from this course and would recommend it to others.

Susan M Martino