Highest Radon Reading?

[sspradling]

For the folks that provide radon testing, what's the highest reading you've gotten? I've tested for almost 3 years, and the highest was a house with a 22 pCi/l. Then this week, I got into a house that measured 108 over a 78 hour test, then I re tested and it came out with 119 over 48 hours. I ran an equipment test in between at my house to be sure there was not an equipment problem. Anyone else?
Stu

[David A. Andersen]

what kind of radon test equipment are you using?

[sspradling]

Hi David,
I use Radalink telemonitors.
Stu

[Michael Larson]

Originally Posted by sspradling

......Then this week, I got into a house that measured 108 over a 78 hour test, then I re tested and it came out with 119 over 48 hours........
Stu

Check measured RADON levels in your county here:

http://mo-radon.info/MO_counties.html

[David C. Macy]

Stuart

The highest I have tested for in 4 years is 18 Pci.

I hope the people that live in the house didnt smoke or there risk is of the charts!!!

I worry about my basement that is 3.4.

Dave

[dthomas2]

Originally Posted by sspradling

For the folks that provide radon testing, what's the highest reading you've gotten? I've tested for almost 3 years, and the highest was a house with a 22 pCi/l. Then this week, I got into a house that measured 108 over a 78 hour test, then I re tested and it came out with 119 over 48 hours. I ran an equipment test in between at my house to be sure there was not an equipment problem. Anyone else?
Stu

Stuart,
At a HI chapter meeting, a Radon expert informed that a home just one mile from where I lived had levels approaching two hundred. An old couple had lived in the home most of their lives and the wife has been sick with one thing of another most of her life.
Readings levels are seasonal and are highest when the greatest differences in atmospheric pressure are in play, i.e., windy days.
That's all I know.

[sspradling]

Anyone else want to share the highest levels they've gotten? It's just curiosity, I'm not writing a book or nuthin'
Stu

[Gary Oleski]

32 pCi/l. In Connecticut.

[Thomas M. Hauswirth]

147 in Connecticut.

[phinsperger]

10 in Ontario Canada

Paul Hinsperger
Hinsperger Inspection Services
Orangeville Ontario
www.hinsperger.com

[Dan Bowers, CMI]

Varies around town in KC but there are definite pockets - like by Cedar Creek, or by the ballpark, or by Parkville, Weston.

Found some in upper 70's and low 80's by Parkville or Weston.

In Columbia I would expect pockets out by the quarry or near Peters place.

[Caoimhín P. Connell]

I think my highest was a little over 20,000 pCi/l (north central Colorado).

Cheers,
Caoimhín P. Connell
Forensic Industrial Hygienist
www.forensic-applications.com

[gbeaumont]

Hi to all,

I thought I had everyone beat until I saw Caoimhín's

My highest ever was just under 1400 PCi/L in Atkinson NH

Regards

Gerry

[gbeaumont]

Originally Posted by Caoimhín P. Connell

I think my highest was a little over 20,000 pCi/l (north central Colorado).

Cheers,
Caoimhín P. Connell
Forensic Industrial Hygienist
www.forensic-applications.com

Caoimhin, was that in a home?, I have never seen an above ground reading anything like that.

Regards

Gerry

[rbunzel]

Mine was 225 just south of NACHI worldheadquarters in Colorado. I have heard of higher readings but they generally involved waterborne radon.

//Rick