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  • 1
    ISSN: 1432-1246
    Keywords: Blood PCB level ; Gas chromatographic pattern ; Duration of breast feeding
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Quantitative and qualitative examination of Polychlorinated Biphenyl (PCB) residues in blood of the women occupationally exposed to PCBs and of their children has been carried out. The children examined in this study have ingested their mothers' milk for periods of 0 to 3 years. The age of the children at the time of this study ranges from 0 to 13 years. The data obtained in this examination provide evidence that PCBs are retained in the children's body for many years and a longer feeding of mothers' milk tends to increase PCB levels in the blood of the children. Especially high PCB levels, 93.2 ppb (μg/kg) and 77.4 ppb are found in the blood of two children. It is found that the gas chromatographic patterns of blood PCBs of the children who have been fed on their mothers' milk for a long time, are different from those of their mothers.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    International archives of occupational and environmental health 41 (1978), S. 125-138 
    ISSN: 1432-1246
    Keywords: Amylphenol ; Biological monitoring ; Butylcatechol ; Butylphenol ; Isopropylcatechol ; Methylcatechol ; Nonylphenol ; Octylphenol ; Phenylphenol ; Urinalysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary GLC systems are developed for quantitative urinalysis of leucodermogenic phenols and catechols, i. e., p-tert.-butylphenol, p-tert. Amyphenol, p-octylphenol, p- and o-phenylphenol, 3- and 4-methylcatechol, 3-isopropylcatechol, and 4-tert.-butylcatechol. The systems were successfully applied for the exposure assessment of the workers in factories producing p-tert.-butylphenol, p-octylphenol and/or 4-tert.-butylcatechol. In accordance with estimated exposure intensities, the concentrations in the urine of product packers were higher than those of plant operators and engineers. The levels were reduced by the improvement of hygienic conditions in the workshops. Importance of biological monitoring is discussed in relation with the possible skin penetration. From the data obtained, BP concentration in urine, 2 μg/ml, is tentatively proposed as a urinary biological threshold limit value to prevent leucodermogenic effect.
    Type of Medium: Electronic Resource
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