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  • Carotenes  (1)
  • Excretion  (1)
  • Lettuce  (1)
  • Pentachlorodiphenyl ether  (1)
  • Polychlorinated biphenyls  (1)
Datenquelle
Materialart
Erscheinungszeitraum
Schlagwörter
  • 1
    Digitale Medien
    Digitale Medien
    Are video display terminals a source of increased PCB concentration in the working atmosphere? (1984)
    Springer
    International archives of occupational and environmental health 53 (1984), S. 261-267 
    Details
    ISSN: 1432-1246
    Schlagwort(e): Video display terminal ; Polychlorinated biphenyls
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary In response to the question: „Are datascreen terminals a source of increased PCB concentrations in the working atmosphere?” a study of PCB emissions from video display terminals (VDT) was undertaken. Emissions of 2.4 to 8.1 ng PCB/h were observed from VDT located in a building (1) where the mean PCB level in the air was 46 ng PCB/m3 during the test period, whereas no PCB emissions were detected from VDT located in a building (2) where no PCB could be detected in the ambient air. However, both the air and the VDT from building 2 were found to be contaminated with polycyclic aromatic hydrocarbons. We conclude that the observed PCB emissions from VDT are the result of the vapourization of PCB deposited onto the VDT from the PCB contaminated air and do not originate from the electrical components of the VDT.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00398819
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Tissue distribution metabolism and excretion of 2,2′,4,4′, 5-pentachlorodiphenyl ether in the rat (1988)
    Springer
    Archives of toxicology 62 (1988), S. 258-262 
    Details
    ISSN: 1432-0738
    Schlagwort(e): Pentachlorodiphenyl ether ; Tissue distribution ; Metabolism ; Excretion
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract The tissue distribution, metabolism and excretion of 14C-2,2′,4,4′,5-pentachlorodiphenyl ether (PCDE) were studied in the rat. Radioactivity was distributed in all tissues examined, with the highest concentrations being found in the fat followed by the skin, liver, kidney and muscle. Most of the radioactivity found in the tissues was due to unchanged PCDE. Decay of PCDE in the blood was fitted to a four-compartment pharmacokinetic model, and the last compartment had a half-life of 5.8 days. A total of 55% and 1.3% of an orally administered dose was excreted in feces and urine, respectively, in 7 days. More than 64% of the fecal radioactivity was due to unchanged PCDE, while hydroxylated PCDE accounted for 23%.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00332484
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Effects of soil fertilization and covering of the culture with plastic film on the provitamin A content of early lettuces (1984)
    Springer
    Plant and soil 80 (1984), S. 139-141 
    Details
    ISSN: 1573-5036
    Schlagwort(e): Carotenes ; Covering ; Fertilization ; Lettuce
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: Summary Different growing conditions of early lettuces were assayed. Some plots of lettuces were grown covered with a perforated plastic sheet, and other plots were not covered. The soil of some plots was fertilized with a usual N+P+K+S fertilizer used at a normal rate, and the soil of other plots with a fertilizer containing only nitrogen at a rate about 40 times lower than the normal one for N. The total carotenes (provitamin A) contents of the ripe lettuces were measured. Covering with a plastic sheet always decreased the total carotenes contents. The N+P+K+S fertilizer used at normal rate increased, relatively to the nitrogen fertilizer lacking of P+K+S and used at low rate, the total carotenes contents of the non-covered lettuces, but had no or low effect on the total carotenes contents of the covered lettuces.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02232948
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