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Complex Mixtures Methods for In Vivo Toxicity Testing (1988) / Chapter Skim
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Appendix A: Origins of Complex Mixtures
Pages 125-132

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From page 127...
... and condensed organic and inorganic matter adsorbed on carbonaceous material. Fossil FUELS Coal The opportunity for synthesis of hazardous chemicals exists whenever coal is subjected to severe conditions, such as those of pyrolysis in the production of coal tar and coal-tar pitch and those of hydrogeneration or gasification in the production of synthetic fuels (McNeil, 19661.
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From page 128...
... In coal gasification, the conversion process itself, rather than the fuel produced, should be the primary concern. Potentially carcinogenic polycyclic organic material found during gasification of coal is likely to concentrate in the tars, oils, char, quench waters, and organic substances from gas-entrained particles.
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From page 129...
... Thus, cigarette smoke contains many biologically active compounds. A variety of fractionation procedures have been used to identify these components, but, despite elaborate analytic procedures, it has been difficult to design toxicologic strategies that address the many biologically active compounds present in this very complex mixture.
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From page 130...
... Municipal waste and sewage waste, although complex, are somewhat more predictable. WATER Raw and finished surface and ground drinking waters contain carcinogenic, mutagenic, and toxic chemicals.
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From page 131...
... Proceedings of the Symposium on Potential Health and Environmental Effects of Synthetic Fossil Fuel Technologies, Gatlinburg, Tenn., September 25, 1978. Oak Ridge National Laboratory, Oak Ridge, Tenn.
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From page 132...
... 1979. Tumors Induced in C3H/HeJ Mice by Coal Tar Neutral Subfractions.
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Key Terms

  • complex mixtures
  • spent shale
  • shale oil
  • oil shale
  • aromatic hydrocarbons

  • polycyclic aromatic
  • biologically active
  • fossil fuels
  • coal tar
  • chemical composition

  • society monograph
  • cigarette smoke
  • potentially hazardous
  • synthetic fuels
  • smoke contains

  • synthetic materials
  • vegetable sources
  • recycled solvent
  • inorganic matter
  • major environmental

  • coal liquefaction
  • organic material
  • active compounds
  • polycyclic organic
  • drinking water

  • aromatic compounds
  • organic matter
  • organic substances
  • major health
  • produce polycyclic


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