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Evaluating engineering controls during asphalt paving using a portable tracer gas method.

Authors
Mickelsen-RL; Mead-KR; Shulman-SA; Brumagin-TE
Source
Am J Ind Med 1999 Sep; 36(S1):77-79
NIOSHTIC No.
20000838
Abstract
The tracer gas method was shown to be a very versatile technique for evaluating the effectiveness of paving machine ventilation systems under controlled conditions as well as under very difficult environmental conditions. Tracer gas results could be obtained quickly, allowing prompt feedback on the control's performance. In comparison, PAC samples, which were analyzed in a laboratory, took three weeks to process. Care must be taken to distribute the tracer gas in a way that the gas will act as a surrogate for the containment of interest. Even though there appears to be a bias in the tracer gas results, the relative results of this technique can be used to find deficiencies and guide in the optimization of control designs of paving machines.
Keywords
Work-environment; Asphalt-cements; Asphalt-fumes; Sampling; Sampling-methods; Control-technology; Engineering; Hot-environments; Pulmonary-system-disorders; Asphalt-industry
CODEN
AJIMD8
CAS No.
8052-42-4
Publication Date
19990901
Document Type
Journal Article
Email Address
rlm3@cdc.gov
Fiscal Year
1999
NTIS Accession No.
NTIS Price
ISSN
0271-3586
NIOSH Division
DPSE
Source Name
American Journal of Industrial Medicine
State
OH; MD
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