Control of Worker Exposure to Silica in Oil and Gas Extraction
Barbara Alexander, PhD, PE1, Eric Esswein, MSPH CIH2, Michael Gressel1, Jerry Kratzer1, H. Amy Feng, MS3, Bradley King, PhD CIH2, Arthur Miller4 and Emanuele Cauda5
(1)CDC/NIOSH, Cincinnati, OH, (2)CDC/NIOSH, Denver, CO, (3)NIOSH, Cincinnati, OH, (4)CDC/NIOSH, Spokane, WA, (5)CDC/NIOSH, Pittsburgh, PA