Abstract
Flameless atomic absorption spectrophotometry was used to determine the chromium (Cr) content of samples taken at autopsy from the lungs, bronchi, and regional hilar lymph nodes of 50 randomly selected patients from urban and rural areas; these patients were not known to have been excessively exposed to Cr.
On the average, the Cr concentration in the lungs of patients younger than 40 yr of age was approximately 2 μg/g; for patients over 40, the average Cr values were between 5 and 15 μg/g dry wt. The highest values were found in samples from the apex of the lung. The Cr concentration in lung and lymph nodes increased in proportion to age and the degree of anthracosis. Chromium content in the bronchial wall was very low in all cases. Chromium values up to ten times greater as compared to age-matched average values were found in scarred lung tissue, probably caused by a postinflammatory lymph vessel blockade. Slightly elevated Cr values were found in smokers' lungs. Chromium values in tissue from primary lung carcinomas (n=9) were lower than those in neighboring lung tissue. Based on the results of this study the amount of Cr of lung and bronchial tissue does not appear to be associated with the induction of bronchial carcinoma.
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Wirnsberger, G., Wawschinek, O., Pruegger, F. et al. Chromium content of normal and pathologically altered lung tissue. Biol Trace Elem Res 14, 43–52 (1987). https://doi.org/10.1007/BF02795595
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DOI: https://doi.org/10.1007/BF02795595