Trends in Levels of Inhalable Dust Exposure, Exceedance and Overexposure in the European Carbon Black Manufacturing Industry

摘要

In an attempt to investigate the relationship between exposure to carbon black and respiratory morbidity, a study of the complete carbon black manufacturing industry in Western Europe was Commissioned. As part of this study, a large number of personal inhalable (n=8015) dust Exposure measurements was taken during three phases of data collection between 1987 and 1995. Repeated measurements on the same worker were taken in the last two phases, which enabled the estimation of the within- and between-worker components of variance. Simultaneously, the fixed effects of phase and factory were estimated using mixed-effects Analysis of variance.