Differences in lung function and prevalence of pneumoconiosis between two kaolin plants.

Differences in lung function and prevalence of pneumoconiosis between two kaolin plants.

To investigate the origin of differences in previously published pulmonary function studies of workers in kaolin plants in Georgia, spirometric and radiographic data collected in a cross sectional survey of two large plants were analysed. As compared with workers in plant 2, workers in plant 1 had a 2.7-fold greater prevalence of pneumoconiosis and a mean 0.361 decrement in adjusted forced vita...

Prevalence of Pneumoconiosis in Cornish Kaolin Workers.

In 1961, 553 Cornish china clay workers had been exposed to kaolin dust for periods exceeding five years, and evidence of kaolinosis was seen in 48 (9 %). No kaolinosis was found in men who had been exposed for less than five years. Workers in the more heavily exposed jobs of milling, bagging, and loading showed a prevalence rising from 6% in those with between five and 15 years' exposure to 23...

Pneumoconiosis of kaolin workers.

Kaolin dust concentrations and pneumoconiosis at a kaolin mine.

Kaolin is removed from underground seams in the mining area to a processing area, where it is sliced, dried, and pulverised to make the finished product. A study was undertaken to determine the dust concentrations in various work areas and to assess the prevalence of radiographic and pulmonary function abnormalities in 65 workers at a Georgia kaolin mine. Respirable dust concentrations were hig...

a cross-comparative dtudy between two textbook series in terms of the presentation of politeness

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