Tag Archives: esswein

NIOSH found 10 times silica exposure limits at drill sites / Erionite warning

UPDATE Sept 2014 Thanks Vera for this newly released video https://www.youtube.com/watch?v=BU3zuXG5P_s&feature=youtu.be# update Jan 2014…now there is this erionite gravel dust that is said to not yet be regulated, yet can be more dangerous tha other regulated particulates. Yes and the drilling … Continue reading

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