Pneumoconiosis Field Research: Environmental conditions at Oakdale Colliery, 1974/75

Respirable dust concentrations and compositions at Oakdale Colliery are tabulated for the period April 1974 to March 1975. Information regarding seams worked, outputs, methods of working, dust suppression and manpower, together with the associated dust concentrations is presented in a series of face charts.At Oakdale Colliery the mean coalface respirable dust concentration was 3.1mg/m3. The mean ash content of the respirable dust sampled was 24. 4 per cent and the mean quartz content was 2. 8 per cent (representing a quartz concentration of 0.09mg/m3).’Total’dust concentrations are also given and on average were ten times as high as the respirable dust concentrations. “”