Hi All

 > So which of these does the 1mg/cubic metre fall into - and how would
 > we know the value to which the beekeeper was being exposed?

Some are concerned about Oxalic acid vaporisation producing a great deal 
of toxic vapour, but the point of the treatment is that the oxalic acid 
re-condenses within the hive very rapidly and coats everything in sight. 
Leakage will occur, but it will be a minor amount and the fine crystals 
will fall out of suspension fairly rapidly.

If due notice is taken of sealing up the hive and prevailing wind 
direction, there should be very little exposure to the operative.


Regards & Best 73s, Dave Cushman, G8MZY
http://website.lineone.net/~dave.cushman or http://www.dave-cushman.net
Short FallBack M/c, Build 6.02/3.1 (stable)

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