Pneumoconiosis Field Research: Environmental conditions at Linby Colliery, 1972/73

This report tabulates respirable dust concentrations and compositions at Linby Colliery for tho period April 1972 to March 1973. 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 Linby Colliery the coalface mean respirable dust concentration was 5.7 mg/m3. The mean ash content of the respirable dust sampled was 63.6 per cent and the mean quartz content was 9.5 per cent (concentration 0.54 mg/m3). Total dust concentrations are also given, and on the average were 5.4 times as high as respirable dust concentrations. “”