Pneumoconiosis Field Research: Environmental Conditions at Morrison Busty Colliery, 1969

This report tabulates respirable dust concentrations and compositions for the period March 1969 – March 1970 at Morrison Busty Colliery. All dust measurements were made using the M.R.E. gravimetric sampler.Information regarding methods of working, outputs, and manpower is also given. The data are presented in a series of face charts.The colliery had a coalface mean respirable dust concentration of 4.7 mg/m3. The mean ash content of the respirable dust was 22.2 per cent and the mean quartz content 2.6 per cent (concentration 0.12 mg/m3).