PMID: 1200718Dec 11, 1975Paper

Pneumoconiosis among the activated-carbon workers

Archives of Environmental Health
K L WehrA K Pierce

Abstract

The prevalence of respiratory symptoms and chest radiographic and spirometric abnormalities was assessed among 397 employees of an activated carbon plant. Definite radiographic findings of pneumoconiosis, consisting of p-type, rounded opacities in the lower lung fields without firbosis or coalescence, were present in 9.6% of men and were related to cumulative dust exposure. Lesser degrees of radiographic abnormality suggesting pneumoconiosis were present in 11% of men and 2% of women. Spirometric values were substantially lower in blacks than in whites. However, cumulative dust exposure was not an important determinant of pulmonary function in either race. Review of lung biopsy speciments that had been obtained previously in two employees revealed extensive carbon depositiion but minimal associated fibrosis. Prolonged inhalation of activated carbon dust leads to pulmonary deposition of carbon and raciographic signs of pneumoconiosis; such deposition has little, if any, effect on respiratory symptoms or pulmonary function.

References

Jan 1, 1967·American Industrial Hygiene Association Journal·J V CrableC H Gorski
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Nov 1, 1972·American Journal of Epidemiology·M OscherwitzT Jarboe
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Apr 1, 1961·British Journal of Industrial Medicine·W B LISTER
Apr 1, 1961·British Journal of Industrial Medicine·A A MILLER, F RAMSDEN

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Citations

Dec 1, 1993·British Journal of Industrial Medicine·K GardinerI A Calvert
May 8, 2003·Journal of Toxicology. Clinical Toxicology·Thomas C ArnoldDonna L Carden
Mar 17, 1999·Journal of Toxicology. Clinical Toxicology·T C ArnoldD L Carden
Aug 1, 1980·Environmental Research·M J WiesterW Moore
Dec 1, 1981·Environmental Research·D G PenneyC M Fanning
Feb 23, 2007·American Journal of Industrial Medicine·Eduardo Mello De CapitaniJaquelina Sanae Ota

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