Pneumoconiosis Field Research: Environmental Conditions at Lady Victoria Colliery, 1970

This report tabulates respirable dust concentrations and compositions at Lady Victoria Colliery for the period 5th April, 1970 to 3rd April, 1971. Information regarding methods of working, outputs and manpower is also given.The colliery had a coalface mean respirable dust concentration of 2.9 mg/m3. The mean ash content of the respirable dust was 33.0 per cent and the mean quartz content 7.6 per cent (concentration 0.23 mg/m3).Total dust concentrations are tabulated and, on average, were six timea as high as respirable concentrations.