Determinants of Chlorpyrifos Exposures and Urinary 3,5,6-Trichloro-2-Pyridinol Levels Among Termiticide Aplicators

摘要

The exposures and work activities of 41 applicators in North Carolina using cholrpysifos- containing termiticides were characterized. Personal air and urine samples were collected on multiple days within one week. Detiled information about chemical use, tasks, personal protective equipment and hygiene was recorded. During the 202 applicator-days monitored, 415 treatment jobs were performed. Full-shift chlorpyrifos exposures ranged from<0.048 to 110 μg/m3 (N=184), with a geometric mean (GM)of 10μg/m3.