Coal miners' pneumoconiosis in four collieries in county Durham.

Pneumoconiosis of coal-miners in three North-umbrian collieries.

Radiological pneumoconiosis is common amongst coal-miners in County Durham, and in four collieries about 22% of men at work above and below ground had fairly well-marked lung changes of category 2 or more (McCallum and Browne, 1955). There are no reliable prevalence data for pneumoconiosis of coal-miners in the adjacent coalfield of Northumberland, but its mines are thought to produce little pn...

The relationship between coal rank and the prevalence of pneumoconiosis.

As part of the Periodic X-ray Scheme of the National Coal Board (NCB), a comparison is made between the previous and new films of all miners who were face-workers on the former occasion, five years earlier. This assessment is made by distributing the films randomly to all the NCB readers. This paper compares the rank of coal mined in each colliery with each colliery's percentage prevalence of p...

Pneumoconiosis of coal miners in north east England with special reference to the Durham coalfield.

Quantitative relations between exposure to respirable coalmine dust and coalworkers' simple pneumoconiosis in men who have worked as miners but have left the coal industry.

Present estimates of the quantitative relations between exposure to mixed respirable coalmine dust and risk of developing coalworkes' simple pneumoconiosis are based on studies of working miners. These studies did not include men who had been miners but had left the coal industry, and it was not known whether the estimates of risk were also appropriate for these men. The results are reported of...

Exposure to respirable coalmine dust and incidence of progressive massive fibrosis.

Data gathered since 1953 concerning more than 30,000 coalminers while employed at 24 collieries in England, Scotland, and Wales have been used to study the incidence of progressive massive fibrosis (PMF) in working coalminers. Results refer to 52,264 approximately five year intervals when the miners were at risk of an attack of PMF. One objective of the present study was to describe how the fiv...