Analyzing Workplace Exposure Using Direct Reading Instruments and Video Exposure Monitoring Techniques
August 1992
DHHS (NIOSH) Publication Number 92-104
![cover image of NIOSH Alert 92-104](/niosh/docs/92-104/images/92-104.png?_=68613)
A typical evaluation of a worker’s exposure to an air containinant requires a pump to draw air through a filter, sampling tube, or other media suitable for collecting the containment for a measured period of time. These integrated samples provide an indication of the extent of a worker’s exposure. Depending on the worker’s job tasks, these samples normally do not identify these critical work elements, a technique called video exposure monitoring has been developed by researchers from the National Institute for Occupational Safety and Health.