Snapshot of Noise and Worker Exposures in Sand and Gravel ...
dredges and processing equipment were recorded to iden ... S&G9 River Dredge, Crane Sand and gravel Approximate Processing production, Number of facilities st/yr employees Land, Both 1,000,000 25-30 Land, Wet 400,000 7 On Board, Wet 350,000 14 Land, Dry 120,000 7 Land, Wet 1,200,000 11 ...
Read More