Asbestosis

Abstract
The most serious cases were found in carders, spinners, weavers, twisters, willowers and pickers in a study of 541 employees of North Carolina textile mills. Exposure ranged from 0.1 to 76 million particles per cu. foot of air; if asbestos dust concs. in the air breathed are kept below 5 million particles per cu. foot, new cases will not appear. The necessity of using modern methods of dust control in the factories and of the use of X-ray films in the study of the factory workers is emphasized.