Interesting info

http://www.thesportjournal.org/sport-supplement/Volume11/sport-supplement-mercury.htm

ncjay, good looking out, i never would have guessed it. why does everydamnthing in the world have to have a health infraction. Its no surprise that mercury is a neurotoxin, so why would the govt. allow it to be used in such a fashion. Its like lead based paint. We need to write to someone regarding this…seriously its the same with mercury based fillings, I hate when poeple conceal facts like that!!!grrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr

The article is a shamless plug for the company that created the mercury free track but it’s something to consider if anyone here is involved in building a track.