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Quantitative relationship of fecal asbestos to asbestos exposure

1976; Taylor & Francis; Volume: 1; Issue: 3 Linguagem: Inglês

10.1080/15287397609529337

1087-2620

H. Μ. Cunningham, R. D. Pontefract, R. C. O'Brien,

Occupational and environmental lung diseases

A method is described for isolating chrysotile fibers from feces and counting them with an electron microscope. The detection limit was 150,000 fibers per gram feces; average recovery was 85.5%. When the method was used to check the asbestos in feces of people subjected to industrial exposure vs. controls, the means were significantly different (p < 0.02). Duplicate fecal samples were found to check within an average of ±31.1% of their means.