>>That's certainly the case near industrial sources that emit plumes  
containing heavy metals.  In exclusion trials, we found that the majority  of the 
exposure of bees to materials like arsenic, cadmium, zinc, copper was  from 
the dusts that sorbed on their bodies.

Jerry,

You mentioned recently that bees also brought in benzine into hives.  Is benzine in the dust that adheres to the bees, too?

Waldemar

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