[ RadSafe ] coal ash toxicity contribution from uranyl

[Dan]

In my opinion, like other heavy metals, you have to reach a  
"threshhold" before toxicity is exhibited. Take a look at Otto Raabe's  
new paper.

Dan ii

Dan W McCarn
HotGreenChile at gmail.com
+1-505-310-3922
Sent from my iPhone

On Apr 5, 2010, at 5:49 PM, James Salsman <jsalsman at gmail.com> wrote:

> How much of the toxicity of coal fly ash is due to uranyl?
>
> Jones, T. et al (2009) "The geochemistry and bioreactivity of fly-ash
> from coal-burning power stations" Biomarkers  14(S1):45-8 states
> "Fly-ash is a recognized bioreactive material in rat lung, generating
> hydroxyl radicals, releasing iron, and causing DNA damage. However,
> the mechanisms of the bioreactivity are still unclear and the relative
> contributions of the minerals and leachable metals to that toxicity
> are not well known." -- http://www.ncbi.nlm.nih.gov/pubmed/19604058  /
> http://www.informaworld.com/smpp/content~db=all~content=a913225205
>
> http://www.scientificamerican.com/article.cfm?id=coal-ash-is-more-radioactive-than-nuclear-waste
> suggests it might be a very substantial portion.
>
> What are the other top genotoxins in coal ash?
>
> Which is the best source measuring the combined chemical and
> radiological carcinogenicity of uranyl?
>
> Sincerely,
> James Salsman
> _______________________________________________
> You are currently subscribed to the RadSafe mailing list
>
> Before posting a message to RadSafe be sure to have read and  
> understood the RadSafe rules. These can be found at: http://health.phys.iit.edu/radsaferules.html
>
> For information on how to subscribe or unsubscribe and other  
> settings visit: http://health.phys.iit.edu