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Subject:
Re: foundation contamination data
From:
Chris Slade <[log in to unmask]>
Reply To:
Informed Discussion of Beekeeping Issues and Bee Biology <[log in to unmask]>
Date:
Sat, 12 Dec 2009 17:41:29 EST
Content-Type:
text/plain
Parts/Attachments:
text/plain (24 lines) 
 
In a message dated 12/12/2009 15:42:12 GMT Standard Time,  
[log in to unmask] writes:

The  half-life of coumaphos was 69 and 115–346 days in honey and comb wax  
respectively. 


Can you confirm or correct my impression that, in this context, the term  
'half life' refers to the level of the contaminant after the time period  
referred to rather than the longevity of the contaminant in the product?   Thus 
something with half life of 12 months would be reduced by half in a  year, 
by 3/4 in 2 years, by 7/8 in 3 years and so on ad infinitum.
 
Chris

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