These included developing new sensors that can continuously monitor air contaminant concentrations or properties related to their concentration and utilizing computerized concentration mapping of workplace contaminants. Emerging workplace air monitoring technologies were discussed. These were primarily concerned with monitoring exposures to biological aerosols, such as those occurring in indoor and office environments, and in the biotechnology industry. We found the best air quality monitors to detect carbon dioxide (CO2), volatile organic compounds (VOC). Other types of air monitoring were summarized.
Performance criteria for evaluating estimates of worker exposures to workplace air contaminants were reviewed. A controlled rate of air via a personal sampling pump is drawn through the filter which has been pre-weighed. Air monitoring was also used to evaluate the performance of control and process equipment. Sampling media (filters) are placed inside the head and clipped onto clothing in the breathing zone. These included safety issues such as detecting explosive atmospheres, entry into confined spaces, and detecting hazardous gases and vapors that are immediately dangerous to life and health.
Reasons for performing workplace air monitoring other than for measuring personal exposures were considered. Methods: A total of 190 subjects collected air samples from areas close to their breathing zone by wearing personal monitors for 24 h. In the US, personal air sampling has been emphasized. Workplace air sampling consisted of obtaining samples of breathing zone (personal) and general air.
The US approach to air sampling in the workplace was discussed.
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