The prevalence of byssinosis and chronic respiratory symptoms was studied in 117 workers in four Swedish cotton mills. Changes of forced expiratory volume in 0-75 sec. (F.E.V.0.75) during a Monday and a Wednesday were assessed in 64 male workers in four cardrooms in these mills. Dust sampling was performed with weighed millipore filters. Prevalences of byssinosis as judged from the workers' his...

An epidemiological investigation in 11 ginneries representing the ginning industry in Egypt demonstrated the existence of byssinosis among 38 4% of the workers. Studies of two pressing plants and two card-rooms in Alexandria showed a prevalence of byssinosis of 52-6% and 266% respectively. The ages of those exposed and the duration of exposure were considered in relation to the prevalence of by...

v Zuskin, E., and Vali, F. (1971). Brit. J. industr. Med., 28, 159-163. Peak flow rate in relation to forced expiratory volume in hemp workers. Measurements of the forced expiratory volume in one second (FEV1.0) and the peak expiratory flow rate (PEF) were made in 99 non-smoking female hemp workers before and after the shift. A significant mean reduction of both FEV1.o and PEF (P < 0-01) over t...

Inquiry into Occurrence of Byssinosis in Jute Mill Workers: B.P. CHATTOPADHYAY, et al. Regional Occupational Health Center E—An epidemiological study was carried out on 196 jute mill workers to inquire into the occurrence of byssinosis and to study the pattern of pre-shift and post-shift changes in ventilatory functions during the working week. The respiratory symptoms were recorded in a questi...

The clinical features of byssinosis which have suggested an allergic factor in its aetiology have been discussed in an earlier paper (Furness and Maitland, 1952). Prausnitz (1936) concluded, on the basis of a wheal and flare type of skin reaction elicited by injecting extracts of cotton dust, that he had demonstrated hypersensitivity specific to byssinosis and supported this view with collatera...

The authors measured prevalence of byssinosis in spinning and textile workers of Karachi, Pakistan, and examined association of the disease with demographic and environmental factors. This was a cross-sectional study conducted in 3 spinning and textile mills and 3 colonies inhabited by spinning and textile workers. A precoded questionnaire was administered to the workers and followed by physica...

Manual flax processing originated in Egypt in 2 000 BC. In the present study a representative sample of the workers involved in this trade, where flax is processed in small workshops or homes, was examined, and their dust exposure was evaluated. The study showed that workers handling and processing flax are exposed to high concentrations of dust; the levels of dust at hackling and combing are c...

BACKGROUND Cotton is the main agricultural export product in Benin. Cotton dust is thus present in the air during the handling and processing of cotton. This dust contains a mixture of substances including ground up plant matter, fibres, bacteria, fungi, soil, pesticides, noncotton matter, and other contaminants. While cotton processing is decreasing in industrialized countries, it is increasin...

AIMS To determine chronic effects of long term exposure to cotton dust and endotoxin on incidence of respiratory symptoms and the effect of cessation of exposure. METHODS Respiratory health in 429 Chinese cotton textile workers (study group) and 449 silk textile workers (control group) was followed prospectively from 1981 to 1996. Byssinosis, chest tightness, and non-specific respiratory symp...