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  • Noise Assessment of Stone/Aggregate Mines: Six Case Studies

    Noise assessment of stone/aggregate mines: six case studies Tntrodustion LR. '&AUER AN!1.1. BAII~H number of ways, including condnct- Exposure tq noise and noisefa- ing a cross-sectional survey of noise dnced hearing loss (NEL) contin- sources and er noise exposures URS to be problematic for the U.S. in the mining industry.Initially, these

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  • Noise and Silica Exposures DEOHS Home

    Noise and silica exposures are presented by quarry type in Table 2. For basalt excavation and portable crusher plants, mean noise exposures exceeded the hearing protection program level, indicating a need for a plant-wide hearing protection program. For sand and gravel operations, full shift exposures measured with the PEL and hearing protection

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  • Gravel Pit Noise Impact Assessment Resource Systems

    During the site visit, we monitored background sound levels throughout the community and measured noise emissions from gravel pit operations. In preparation for local and state permitting requirements, RSG conducted sound propagation modeling using Cadna A acoustical modeling software to determine sound levels throughout the community due to

  • Snapshot of Noise and Worker Exposures in Sand and Gravel

    ment noise and er noise exposures in the mining industry to estimate the potential for NIHL within the mining community. One commodity recently surveyed was the extraction of sand and gravel from surface pits and by dredging. To address the potential for NIHL in the sand and gravel industry, sound levels on and around the

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  • Crushing Rock or Crushing Rocks Masonry Magazine

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  • 3. The Environmental Impacts of Aggregate Extraction

    Moreover, adjacent eco-systems are affected by noise, dust, pollution and contaminated water. Pits and quarries disrupt the existing movement of surface water and groundwater; they interrupt natural water recharge and can lead to reduced quantity and quality of drinking water for residents and wildlife near or downstream from a quarry site.

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