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HETA Report No. TA-80-34, U.S. District Court, District of Columbia, Indoor Firing Range, Washington, D.C.

Authors
McGlothlin-JD
Source
NIOSH 1980 May:9 pages
Link
NIOSHTIC No.
00179005
Abstract
An evaluation was made of the ventilation system and design of an indoor firing range located in the District Court Building, in Washington, D.C. As this facility had been closed almost 2 years earlier, sampling for lead (7439921) concentrations was not possible. The evaluation was needed so that the facility could be reopened for handgun qualifying of U.S. Marshals. The range was 108 feet long, 12 feet wide and 9 feet high with three firing booths. The ventilation system supplied about 1300 cubic feet of air per minute (cfm) and exhausted 3700cfm. Air entered through 12 ceiling diffusers and exited through three ceiling diffusers, one above each shooting station. The range was under negative pressure with regard to the rest of the building. Ventilation was acceptable at the shooting stations, but the air became stagnant further down range. The air supply to the range officer needed to be redesigned to avoid drafts and to increase the efficiency of lead dust removal. The author recommends modifications which would render this facility operational. The sand pit at the end of the range used to trap spent bullets should be replaced with a water trap. The author recommends that reflecting walls be covered with high efficiency sound absorbing material and that the back sides of the trap plates be covered with an epoxy resin to reduce noise levels.
Keywords
NIOSH-Author; TA-80-34; Region-3; Hazard-Confirmed; NIOSH-Technical-Assistance-Report; Heavy-metals; Policemen; Lead-dust; Dust-control; Air-quality-measurement; Noise-control;
CAS No.
7439-92-1;
Publication Date
19800501
Document Type
Hazard Evaluation and Technical Assistance; Field Studies
Fiscal Year
1980
NTIS Accession No.
PB80-211485
NTIS Price
A02
Identifying No.
TA-80-34
NIOSH Division
DSHEFS;
Source Name
Hazard Evaluations and Technical Assistance Branch, NIOSH, Cincinnati, Ohio, Report No. TA-80-34, 9 pages, 4 references
State
WA; OH;
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