Levels of metabolites of selected chemical compounds in the urine of workers in pitch coke plant
Bieniek, G.; Bocheńska, T.; Skorek, R.; Kustra, G.; Rózańska, R.; Czogała, J.; Pieroń, G.; Jabłońska, E.
Medycyna Pracy 40(3): 183-191
1989
ISSN/ISBN: 0465-5893 PMID: 2593817 Document Number: 340321
In urine samples collected from pitch coke plant workers just before and after occupational exposure, differentiated concentrations of phenol (20.8-692.8 mg/dm3), p-cresol (51.8-590 mg/dm3), I-naphtol (4.9-63.7 mg/dm3) and benzo(a)pyrene (0.3-18.9 ug/dm3) have been found. The occurrence of enhanced concentrations of phenol in 10.1%, p-cresol in 31.9%, I-naphthol in 13.5% and benzo(a)pyrene in 72.8% of the test urine specimens collected prior to exposure points to a slow excretion of these metabolites of chemical compounds inherent in the work environment. Furthermore, the urinary level of the metabolites in particular coke plant workers points to different individual exposure.