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    • PM2.5 Airborne Particulates Near Frac Sand Operations 

      Jilek, Jonathan; Walters, Kristen; Spengler, Alayna; Valentine, Bethany; Schmitz, Jennifer; Conrad, Christopher; Kroening, Zachary; Wetzel, Ian; White, Cory; Dahlen, Jonathan (2014-04)
      Hydraulic fracturing, or fracking, is a popular method for extracting natural gas from shale deposits below the earth's crust. "Freshly-fractured" silica appears to be 2 to 5 times more reactive with animal lung tissue ...