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Study of Worker Exposure from a Hand-Held Contaminant Source in a Simulated Spray Booth Operation.

PB97104830

Publication Date	1993
Personal Author	Lackey, B. D.
Page Count	41
Abstract	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 manneqin 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.
Keywords	Industrial hygiene Occupational safety and health Air quality monitoring Spraying booths Control technology Air quality control Air flow Exhaust ventilation
Source Agency	National Institute for Occupational Safety and Health
NTIS Subject Category	57U - Public Health & Industrial Medicine 68G - Environmental Health & Safety 94D - Job Environment
Corporate Authors	North Carolina Univ. at Chapel Hill. Dept. of Environmental Sciences and Engineering.; National Inst. for Occupational Safety and Health, Cincinnati, OH.
Supplemental Notes	Sponsored by National Inst. for Occupational Safety and Health, Cincinnati, OH.
Document Type	Thesis
Title Note	Master's thesis.
NTIS Issue Number	199701

Study of Worker Exposure from a Hand-Held Contaminant Source in a Simulated Spray Booth Operation.

Study of Worker Exposure from a Hand-Held Contaminant Source in a Simulated Spray Booth Operation.
PB97104830

Publication Date	1993
Personal Author	Lackey, B. D.
Page Count	41
Abstract	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 manneqin 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.
Keywords	Industrial hygiene Occupational safety and health Air quality monitoring Spraying booths Control technology Air quality control Air flow Exhaust ventilation
Source Agency	National Institute for Occupational Safety and Health
NTIS Subject Category	57U - Public Health & Industrial Medicine 68G - Environmental Health & Safety 94D - Job Environment
Corporate Authors	North Carolina Univ. at Chapel Hill. Dept. of Environmental Sciences and Engineering.; National Inst. for Occupational Safety and Health, Cincinnati, OH.
Supplemental Notes	Sponsored by National Inst. for Occupational Safety and Health, Cincinnati, OH.
Document Type	Thesis
Title Note	Master's thesis.
NTIS Issue Number	199701