Video exposure monitoring - a means of studying sources of occupational air contaminant exposure, part 1 - vdeo exposure monitoring techniques.
Gressel-MG; Heitbrink-WA; Jensen-PA
Appl Occup Environ Hyg 1993 Apr; 8(4):334-338
The use of video exposure monitoring as a technique for studying workplace air contaminant exposures was discussed. Criteria for air monitoring instruments to be used for video exposure monitoring were considered. Any instrument that can produce an output signal of the concentration measurements is potentially useable in a video exposure monitoring system. The instrument should be battery operated, small, and light enough to be mounted on the worker, be specific for the contaminant of interest, and have a short time constant. Air monitors that would be suitable include aerosol photometers, photoionization detectors, and portable infrared analyzers. The concentration measurements should be recorded automatically since real time concentration data are generally required to evaluate relationships between workplace activities and air contaminant exposures. The characteristics of data logging devices and video recorders needed for video exposure monitoring systems were described. Techniques for assembling video exposure monitoring data were considered. Techniques for producing overlay video recordings for a video exposure monitoring system were discussed. The features of a video exposure monitoring system used by NIOSH researchers were described. The authors conclude that video exposure monitoring can be a very effective technique for identifying sources of worker exposure to air contaminants. Data obtained by this technique can be used to develop appropriate control measures for controlling exposure.
NIOSH-Author; Industrial-hygiene; Air-monitoring; Air-contamination; Work-analysis; Workplace-monitoring; Occupational-exposure
Applied Occupational and Environmental Hygiene