[Terrapreta] Wood as source of mercury emissions?

[Kevin Chisholm]

Dear Greg

Greg and April wrote:
>
> Involved in a discussion on another list ( mercury and cement ), and 
> one guy mentioned that wood is a source of mercury and as proof, he 
> offered up this little tid bit:
>
> http://www.mass.gov/dep/toxics/stypes/hgch3c.htm#wood

This reference indicates that ALL the wood burning plants studies 
emitted a total of about 1.5 pounds of mercury per year.... the rate is 
about 6.7X10^-6 lbs Hg per ton of wood, and wood burned is in teh order 
of 200,000 tons/yr.. Mercury release from lamps broken in Massachusets 
is estimated at about 74 lbs/year. Dental loses to the environment are 
about 28 pounds per year.

It seems to be a real stretch to blame wood burning for a mercury concern.

Best wishes,



Kevin
>  
>  
> As only the wood burning facilities were tested and not the source 
> wood, I'm inclined to believe that it is more hysteria, than actual 
> science, but, wanted to get the opinion of folks that have more 
> experience involving in the heating and oxidation of wood than myself.
>  
> Greg H. 
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