Bagassosis: an epidemiological and environmental survey - abstract

ABSTRACT

An epiemiological and environmental survey of 170 bagasse workers employed by a raw sugar producing company in Trinidad was carried out in order to assess the prevalence of respiratory symptoms, and to determine if exposure to bagasse was associated with alterations in ventilatory capacity. The epidemiological survey failed to reveal a significantly increased prevalence of respiratory symptoms in the more exposed group, but showed that the group of Indian workers who were regularly and continuously exposed to bagasse had a significantly lower ventilatory capacity than the control group (p < 0.001). This diminished ventilatory capacity was demonstrated despite negligible dust concentrations in the plant. Dust concentrations were measured using a Hexhlet sampler, the highest mean total dust concentration of 0.71 mg./m3 being found in the unloading area. However, the possibility that persistent exposure to low concentrations of bagasse may be the cause of the diminished ventilatory capacity must be considered (AU)