The removal projects predominantly involved the use of hand tools to tear off the shingles and underlayment materials. Inspect a full-face negative pressure respirator. Sampling results To date, NRCA has completed personal breathing zone and area air sampling on four asphalt shingle removal projects and four asphalt shingle roof system installations. device is placed as close as possible to the breathing zone. Learning Outcomes Upon completion of this lesson, the student will be able to. Personal air sampling is the preferred method of evaluating worker exposure to airborne. Exposures of subjects whose spouses smoked unrestrictedly within the home were a factor of two to four higher than those of subjects who worked in locations where smoking occurred and was not restricted. Radiological Safety and Response RPT-243-PE-6. Since placement of the sampling media can be critical, it should be located as close as possible to the employee’s face. Placement of the sampler in stagnant air will causewill cause starvation and will cause lowand will cause low results to occur. It is important that there be some degree of air movement at the sampling siteof air movement at the sampling site. Exposure to environmental tobacco smoke in sixteen cities in the United States as determined by personal breathing zone air sampling. These breathing zone samples are considered to represent the employee’s actual exposures. A typical sampling train for personal monitoring would look like this with the sampler mounted in the breathing zone. breathing zone or hang in an areabreathing zone or hang in an area. For the majority of subjects who either lived or worked in smoking environments, the home was found to be the greater source of ETS exposure. The breathing zone is defined as an imaginary 9 inch sphere around a person’s head. Residential RSP levels ranged from 50 to 113% of those which have been reported by other investigators. Individuals living and/or working in environments where smoking occurs were confirmed to be the most highly exposed to environmental tobacco smoke (ETS). Collected samples were analyzed for respirable particulate matter (RSP) (3.5 microns diameter), ultraviolet absorbing particulate matter, fluorescing particulate matter, solanesol, scopoletin, nicotine, 3-ethenyl pyridine, and myosmine. Individuals were selected for the study in an attempt to equally represent those working and living in smoking and nonsmoking environments. Approximately one hundred nonsmoking individuals in each of 16 metropolitan areas of the United States collected a sample of air from their breathing zone while in their workplace and a sample while away from work during their 24-hour days.
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