#This list of URLs was created for the End of Term Presidential Harvest 2016 project. #URLs for value "CDC: NIOSH Science Blog: Worker Exposure to Crystalline Silica During Hydraulic Fracturing" in metadata field "Title" #List generated on 2024-04-25 17:02:24Z http://blogs.cdc.gov/niosh-science-blog/2012/05/23/silica-fracking