[ RadSafe ] Diesel exhaust and underground mining vs other factorsfor lung cancer

[Brennan, Mike (DOH)]

Hi, Patricia.

I think you are overselling that part of a sentence.  While I haven't
seen the article, I suspect what they mean is that even when the other
factors are controlled statistically, risk of dying of lung cancer
increases as REC exposure increase.  This does not mean that researchers
are saying that silica, asbestos, non-diesel exhaust-related polycyclic
aromatic
hydrocarbons, respirable dust, and radon do not cause cancer, but rather
their results are not explained by those other cancer causing agents.  

If you did a little bit of research on your source, you would find that
Journal of the National Cancer Institute, in which this paper will
appear, has over 200 papers, articles, and editorials which mention
radon (though most are not about radon), and a quick perusal shows
almost all agree that radon can cause cancer, though there is discussion
about the numbers.  The International Agency for Research on Cancer,
cited as the agency that classified diesel exhaust as a probable
carcinogen, also classifies radon as a carcinogen.

I suspect that when you read this entire article, it will not in fact
support your position.

-----Original Message-----
From: radsafe-bounces at health.phys.iit.edu
[mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of patricia lewis
Sent: Friday, March 02, 2012 11:50 AM
To: radsafe at health.phys.iit.edu
Cc: Edward Calabrese; patricia lewis; Jerry Cuttler; Doug Boreham; TD
Luckey
Subject: [ RadSafe ] Diesel exhaust and underground mining vs other
factorsfor lung cancer

http://www.eurekalert.org/pub_releases/2012-03/jotn-sse030212.php

Studies show exposure to diesel exhaust may increase lung cancer
mortality
(all author contact info is within the article)

SNIP: "The researchers found a statistically significantly increased
risk
of lung cancer with increasing REC exposure among underground workers.
Some
evidence of increased risk was also shown for longer-term workers above
ground who were exposed to elevated levels of REC (Respirable Elemental
Carbon - a surrogate of diesel exhaust exposure). Other workplace
exposures
such as silica, asbestos, non-diesel exhaust-related polycyclic aromatic
hydrocarbons, respirable dust, and radon, had little or no effect on the
findings."  Repeat: ".... and radon, had little or no effect on
findings."

-- 
Pat Lewis
http://www.radonmine.com


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