RT Journal Article
SR Electronic
T1 Pulmonary impairment in workers exposed to silicon carbide.
JF British Journal of Industrial Medicine
JO Br J Ind Med
FD BMJ Publishing Group Ltd
SP 489
OP 493
DO 10.1136/oem.49.7.489
VO 49
IS 7
A1 G Marcer
A1 G Bernardi
A1 G B Bartolucci
A1 G Mastrangelo
A1 U Belluco
A1 A Camposampiero
A1 B Saia
YR 1992
UL http://oem.bmj.com/content/49/7/489.abstract
AB Two hundred and sixty seven workers employed in the manufacture of silicon carbide (SiC) were examined to determine the effects of exposure to contaminants (SiC, quartz, and SO2) in the workplace on pulmonary function. No exposure concentrations exceeded the current permissible limits. Ten subjects (3.7%) showed rounded opacities (profusion greater than or equal to 1/0). Two subjects employed only in the final stages of the production process and not exposed to crystalline silica showed opacities (profusion q1/0 and q2/1) on x ray film suggesting a role of SiC in the genesis of interstitial lung disease. Chest abnormalities on x ray film were correlated with cumulative exposure to dust and pulmonary function was affected by cumulative dust exposure, profusion of opacities, and smoking. It is concluded that the current standards do not provide adequate protection against pneumoconiosis and chronic pulmonary disease in this industry.