A Study of Worker Exposure from a Hand-Held Contaminant Source in a Simulated Spray Booth Operation.
Department of Environmental Sciences and Engineering, School of Public Health, University of North Carolina, Chapel Hill, North Carolina 1993 Aug:39 pages
Tracer gas concentration generated from a hand held source in the breathing zone of a mannequin in a spray booth were monitored. Measurements were also taken for an elliptical cylinder positioned in a wind tunnel. The position of the worker had a statistically significant impact on the concentration of the pollutant in the breathing zone. When the air flow was coming from the side, a drop of about two to three orders of magnitude in concentration was noted compared to positioning the worker with the airflow from the back. There was interaction between worker position and airflow rate. When comparing the findings for the mannequin to the cylinder, tracer gas concentrations were lower in the breathing zone of the mannequin than for the cylinder. Placing an object (representing a workpiece) downstream of the worker when the airflow was from the back caused about a two fold increase in the breathing zone tracer gas concentration. When a worker was positioned sideways to the airflow, there appeared to be a substantial decrease in coexposure to the tracer gas.
NIOSH-Grant; Control-technology; Air-quality-control; Air-quality-monitoring; Air-flow; Exhaust-ventilation; Spraying-booths;
Environmental Sciences & Engr University of North Carolina CB 7400 Rosenau Chapel Hill, NC 27599-7400
Final Grant Report;
NTIS Accession No.
Department of Environmental Sciences and Engineering, School of Public Health, University of North Carolina, Chapel Hill, North Carolina
University of North Carolina Chapel Hill, Chapel Hill, North Carolina