Originally posted by bufeo
Quote: | Originally posted by David K
Lou, barite (baryte) which is what the mine produces is not hazardous. .... |
In its natural state it isn't hazardous, but when mining it a plethora of dust is produced. When hauling it...especially since the majority of those
trucks in Baja don't cover their material...barite dust comes from the trucks.
Breathing that dust even for short periods of time is considered a health hazard. That's why the Hazardous Sheet for the material contains the
warning:
PRECAUTIONS TO BE TAKEN IN HANDLING AND STORING Avoid breathing dust. Practice reasonable caution and personal cleanliness. Launder contaminated
clothing before reuse. Store in a cool dry area
and:
IARC Monographs, Vol 68, 1997, concludes that there is sufficient evidence that inhaled crystalline sillica in the form of quartz or
crysto-balite from occupational sources cause cancer in humans. IARC classification Group 1. Because of quantity and composition, the
health hazard is small.
That last sentence is important because, again, in its natural state (i.e. undisturbed, unmined, unpulverized) its health hazard is small.
But, to make the comment that it is NOT hazardous in dust form is incorrect.
As for the oil rigs in the Santa Barbara Channel we lived in the area for over forty years. I never liked seeing them, and I was glad that one of the
better things that happened during Bush the Elder's term was that a moratorium on new leases went into effect (1990). Incidentally, that moratorium,
legistration for which began during Reagan's term, expires sometime this year I think.
Allen R |