"There are 25 silica sand sites in Great Britain. There are also about 20 working mines in which industrial minerals (such as potash, gypsum, limestone) are extracted, but with one exception the silica content is low. Recent data indicates that for certain tasks exposures can exceed 0.3 mg/m3 (8-hr TWA) but in these circumstances respiratory protective equipment is used."
Click on the link in the title for more information.
What about the general public living next door to the sites? Like the owners of the property immediately to the left of this site in Ashwicken behind the screen of trees?
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