Buying Bedbug products in Canada Got Bed Bugs …

From what I've been reading, it is crystalline silica (like the kind in pool-grade, I believe) that is cancer-causing. The DE from the green earth people should be crushed diatoms, and is not refined crystalline silica, so I don't think we have to worry too much about cancer, though I would not be inhaling it either...

Quote from here: http://eap.mcgill.ca/Publications/eap4.htm "The only health precautions that need to be taken are that if large areas are being treated with a power duster, the applicator should wear a mask to prevent inhalation. Because DE is made of silica, people sometimes mistakenly think that DE causes silicosis. As indicated above, however, pesticide quality DE is usually over 97 per cent amorphous silica, which does not cause silicosis, which is associated only with crystalline silica. Indeed, inhalation of road dust and grain dust IS likely to be more harmful than DE."

Quote from WHO: http://www.who.int/mediacentre/factsheets/fs238/en/ "Work in mines, quarries, foundries, and construction sites, in the manufacture of glass, ceramics, and abrasive powders, and in masonry workshops is particularly risky."

Workers in those fields can develop lung cancer after years of on-the-job exposure.

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