Associations between exposure to polycyclic aromatic hydrocarbons and temporal change of urinary 1-hydroxypyrene levels in Taiwanese coke-oven workers
Journal
Journal of Occupational and Environmental Medicine
Journal Volume
48
Journal Issue
9
Pages
930-936
Date Issued
2006
Author(s)
Lin Y.-C.
Pan C.-H.
Chen C.-J.
Chang-Chien G.-P.
Ho C.-K.
Wu T.-N.
Chuang H.-Y.
Kuo H.-W.
Wu M.-T.
Abstract
Our aim is to analyze the association between polycyclic aromatic hydrocarbon (PAH) exposure and the temporal change of urinary 1-hydroxypyrene (1-OHP). Two personal air samples, eight spot urine samples, and questionnaires were used to collect PAH exposure, urinary 1-OHP, demographic data, and environmental pollutants. Topside-oven workers had significantly higher levels of PAH exposure and 1-OHP than side-oven workers. Urinary 1-OHP was a biomarker for PAH exposure. In topside-oven workers, the trend of 1-OHP increased sharply and reached the top in the sixth day after work and declined dramatically on days off. In side-oven workers, such a trend was not found, and those who smoked showed a slight increase in urinary 1-OHP levels on days off. We suggest that the pattern of temporal change of urinary 1-OHP levels is different between topside-oven and side-oven workers.
Type
journal article