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In-depth survey report: evaluation of ventilation and filtration system for LMDS and DPRC at United States Postal Service Processing and Distribution Center, Cincinnati, Ohio, report no. CT-279-21a.

Authors
Garcia-A; Beamer-BR; Crouch-KG; Hammond-D
Source
NIOSH 2005 May; :1-14
NIOSHTIC No.
20026872
Abstract
Researchers from the National Institute for Occupational Safety and Health (NIOSH) conducted an evaluation of the Ventilation/Filtration System (VFS) developed for the United States Postal Service (USPS) mail processing equipment - the Loose Mail Distribution System (LMDS) and Dual Pass Rough Cull (DPRC). The VFS was developed and installed by a private contractor hired by the USPS to reduce the potential for employee exposure to harmful substances that could be contained in mail pieces processed by the equipment. NIOSH was asked to assist the USPS in evaluating controls for this and other mail processing equipment after the 2001 terrorist attacks that used the mail as a delivery system for anthrax. Evaluations were based on a variety of tests including tracer gas (TG) experiments, air velocity measurements and smoke release observations. All three tests were made to evaluate contaminant capture efficiency of the VFS at the New Universal "Dump Into" Hamper Dumper Hoods for the DPRC and showed that the system meets or exceeds minimum USPS contaminant capture requirements in this area. However, only TG experiments and smoke release observations were made at the New Universal "Dump Into" Hamper Dumper Hood for the LMDS since the final configuration of the VFS hood was not in place. It is recommended that a full analysis including smoke release observations, TG experimentation and air velocity measurements be made at the New Universal "Dump Into" Hamper Dumper Hood for the LMDS when the final configuration is implemented.
Keywords
Control-equipment; Control-technology; Environmental-contamination; Environmental-control-equipment; Filtration; Ventilation; Ventilation-equipment; Ventilation-hoods; Ventilation-systems; Machine-operation; Postal-employees; Air-flow; Exhaust-gases; Exhaust-ventilation; Gases; Measurement-equipment; Testing-equipment; Engineering-controls; Region-5
Contact
National Institute for Occupational Safety and Health, Division of Applied Research and Technology, Engineering and Physical Hazards Branch, Mail Stop R-5, 4676 Columbia Parkway, Cincinnati, OH 45226-1998
Publication Date
20050501
Document Type
Field Studies; Control Technology
Fiscal Year
2005
NTIS Accession No.
PB2005-106329
NTIS Price
A03
Identifying No.
CT-279-21a
NIOSH Division
DART
SIC Code
4311
Source Name
National Institute for Occupational Safety and Health
State
OH
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