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  • Title: [Exposure of children to benzene and other motor vehicle emissions].
    Author: Jermann E, Hajimiragha H, Brockhaus A, Freier I, Ewers U, Roscovanu A.
    Journal: Zentralbl Hyg Umweltmed; 1989 Oct; 189(1):50-61. PubMed ID: 2479391.
    Abstract:
    The concentrations of benzene, toluene, and lead and the percentage of carboxyhemoglobin (COHb) were measured in the venous blood of 48 children living in a central urban area with high traffic density (Cologne, FRG). The same parameters were also evaluated in a reference group of children (n = 72) living in a small city located in a rural area of West-Germany (Borken, Münsterland). The above named parameters could be quantitated in all blood samples. The children living in the central urban area had, on average, significantly higher concentrations of benzene, toluene, lead, and COHb in blood than the children of the reference group. The blood benzene concentrations were, on average, 71% and the toluene concentrations 56% higher in the urban children when compared to the reference group. The median values of the urban group/reference group were: benzene, 115/70 ng/l; toluene, 545/370 ng/l; lead, 5.2/4.7 micrograms/dl; COHb, 0.9/0.6%. It is concluded that the higher levels of benzene, toluene, lead, and COHb found in the blood of the urban children result from the higher atmospheric concentrations of these pollutants generally found in central urban areas with high traffic density.
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