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I thought oxygen at concentrations found at sea
level was a known carcinogen (??). Don't know the dose response. Don't know what
the ALARA police says about the new oxygen lounges at the airports.
Kai
----- Original Message -----
Sent: Sunday, March 09, 2003 3:37
PM
Subject: Hazardous vs. Radioactive
Materials
This may be slightly off-topic for this list, but I was
wondering if anyone knew of any specific hazardous materials (carcinogens)
that are present in the natural background, as radioactive material is, and
what the "background" risk levels might be for those hazardous
materials.
Barbara
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