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Health Hazard Evaluation Report: HETA-91-124-2192: U.S. Park Police; Washington, D.C.
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1992/03/01
[PDF-531.51 KB]
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Description:In response to a request from the U.S. Park Police (SIC-9221), Washington, D.C., a study was undertaken of possible hazardous exposures to lead (7439921) at a new indoor firing range. Air sampling revealed that for students using the range during training, the 8-hour time weighted average (TWA) exposures ranged from 4.4 micrograms/cubic meter (microg/m3) to 116.4microg/m3 of airborne lead, with a mean of 32.5microg/m3. For range officers, the TWA exposures ranged from 0.15 to 52.6microg/m3, mean 16.1microg/m3. Area samples ranged from 0.15 to 2291.1microg/m3. During qualification shooting, the 8-hour TWA exposures for students ranged from 1.0 to 103.8microg/m3, with a mean of 26.3microg/m3. For range officers, the 8-hour TWA exposures ranged from 9.7 to 39.8microg/m3, mean 18.0microg/m3. A smoke machine was used to visualize the air patterns in the firing range. It was found that contaminated air could be pulled from downrange to behind the shooting line. The authors conclude that overexposure to lead occurred during use of the firing range, due to deficiencies in the range ventilation system. The authors recommend specific measures to lessen the hazardous exposures.
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Pages in Document:19 pdf pages
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Contributor:Crouch, Keith G.
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NIOSHTIC Number:00207664
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NTIS Accession Number:PB92-205863
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Citation:Cincinnati, Ohio: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, HETA 91-124-2192, 1992 Mar; :1-22
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Federal Fiscal Year:1992
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Peer Reviewed:False
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Resource Number:HETA-91-124-2192
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