Today I spent 10 hours in a meeting with epidemiologists and toxicologists
who were
explaining to me the specific health-related problems from low-level lead
poisoning.
Granted this was for areas surrounding Superfund sites, and we were talking
about
humans, but it was a little scary to see how very low levels of lead in the
bloodstream
can lead to increased incidences of some nasty diseases and conditions.
The question is, what's *in* that brackish puddle on the trail. Do horses
naturally
avoid contaminated water sources? I can remember *not* letting my horse
drink
at a puddle or two because I didn't like the rainbow haze in the water, but
if it's
the horse's choice, will he refuse to drink it...?
Scott