sfogarty
August 16, 2011, 9:29pm
1
Since there has been past discussions about arsenic being in old plaster walls I grabbed a couple chunks out of older buildings.
One was a old building downtown that I suspected to be turn of last century (1900) and the tesing on the piece came back 0 ppb
The house I sampled was built in around 1930 and the plaster chunk came back at 10 ppb.
SO arsenic does exist in plaster.
I know the limit on drinking water is 10ppb but I don’t know about air quality.
Just figured I would share this info with you guys. A arsenic test cost me very little at the local lab I use, and would add to our list of services.
I can email anyone test results if you want to see.
rcooke
August 16, 2011, 9:50pm
2
How the arsenic usually get into older homes is I believe they used arsenic to remove the hair from leather .
sfogarty
August 16, 2011, 10:24pm
3
I believe your right Roy. Did you remember those days??
Like I said I don’t know about air quality but with water 10ppb is acceptable. Harmless yes, still in the walls, yes also…
The next home may not be so low. I plan on more testing when I have the opportunity.
mlarson
August 16, 2011, 10:32pm
4
Sean, you can edit the title if you go to advanced mode.
jwilks
August 16, 2011, 10:58pm
6
I do not believe there are any IAQ standards for any stubstance in regards to residential settings (other than the recommended action levels for Radon; per the EPA).
sfogarty
August 16, 2011, 11:38pm
7
Jackpot!http://www.epa.gov/ttnatw01/hlthef/arsenic.html
wwilson3
August 17, 2011, 1:34am
8
