PPB.
Does anyone know how these concentrations of imidacloprid compares to what
the bees gather I the field in areas of imidacloprid application?
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0029268
ReaD close, decent study!
The highest number I have ever seen that I recall is 46 ppb, and when that
hive was resampled it showed zeros 4 weeks later.
Charles
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