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Pubmed for Handhelds

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  • Title: Biological monitoring of occupational exposure to toluene diisocyanate.
    Author: Maître A, Berode M, Perdrix A, Romazini S, Savolainen H.
    Journal: Int Arch Occup Environ Health; 1993; 65(2):97-100. PubMed ID: 8253517.
    Abstract:
    The study validated the use of urinary toluene diamine (TDA) in postshift samples as an indicator of preceding 8-h exposure to toluene diisocyanate (TDI). Nine workers exposed in TDI-based polyurethane foam production were studied. Their exposure levels varied in 8-h time-averaged samples from 9.5 to 94 micrograms/m3. The urinary TDA concentrations varied from 6.5 to 31.7 micrograms/g creatinine and they were linearly related to the atmospheric TDI levels. Approximately 20% of TDI is metabolized to diamines but their specificity is remarkable to the extent that by analysis for the 2,4- and 2,6-diamino isomers an idea of the percutaneous absorption may be had.
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