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Development of and Field Results with a new CO Passive Dosimeter

Speaker(s): 
Michael G Apte
Date: 
July 17, 1998 - 12:00pm
Location: 
90-3148
Seminar Host/Point of Contact: 
Richard Sextro

This seminar will present details about a new, inexpensive CO passive sampler, the LBNL/QGI Occupational CO Dosimeter (LOCD), which was used to measure workers CO exposures in the Moscone Convention Center in San Francisco. The LOCD measures time-weighed-average CO exposures from 10 to 800 ppm-hours (accuracy: + 20%, precision: 10 ppm-hours). This device represents a major improvement over currently available low-cost personal CO monitors. The LOCD was used to measure 154 worker exposures on three days and sampler performance was compared to a standard method at 15 fixed sites. Dock workers and forklift operators had the highest exposures. Attendants and installer/decorators had the lowest exposures. Physiologically-based pharmacokinetic modeling was used to investigate the effect of extended workshifts on the workers blood carboxyhemoglobin levels. For more information about this seminar, please contact: Rich Sextro(510) 486-6295

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