Toxicity and toxic interaction of aniline and pyridine
Chemical characterization of organic contaminants of coal conversion processes such as gasification or liquefaction has revealed them to be a potential source of environmental hazards. The majority of these compounds may be divided into four major classes: (1) phenols, (2) aromatic hydrocarbons, (3) aromatic amines, and (4) sulfur-containing compounds. Little is known about nitrogen-substituted aromatics. The data available, however, suggest that they are toxic and, even more importantly, are resistant to structural degradation. Examination of their water solubility reveals that although they are not as soluble as low-molecular-weight phenols, arylamines are more soluble than their nonsubstituted or sulfur-containing analogs. Thus, with existing technologies there is a real possibility that nitrogen-containing aromatic compounds may be discharged from coal conversion facilities as aqueous effluent in large enough concentration to have a pemicious effect on aquatic biota. Acute toxicity thresholds of several nitrogen-containing aromatic compounds have been tabulated for aquatic organisms, but potential toxic interactions between these compounds have not been investigated.
- Research Organization:
- Pan American Univ., Edinburg, TX
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 5204698
- Journal Information:
- Bull. Environ. Contam. Toxicol.; (United States), Journal Name: Bull. Environ. Contam. Toxicol.; (United States) Journal Issue: 1 Vol. 23:6; ISSN BECTA
- Country of Publication:
- United States
- Language:
- English
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010900* -- Coal
Lignite
& Peat-- Environmental Aspects
090100 -- Hydrocarbon Fuels-- (-1989)
10 SYNTHETIC FUELS
520100 -- Environment
Aquatic-- Basic Studies-- (-1989)
54 ENVIRONMENTAL SCIENCES
AMINES
ANILINE
ANIMALS
AQUATIC ECOSYSTEMS
AROMATICS
AZINES
CARBONACEOUS MATERIALS
COAL
COAL GASIFICATION
COAL LIQUEFACTION
ECOSYSTEMS
ENERGY SOURCES
ENVIRONMENTAL EFFECTS
FOSSIL FUELS
FUELS
GASIFICATION
GROWTH
HETEROCYCLIC COMPOUNDS
HYDROXY COMPOUNDS
INVERTEBRATES
LIQUEFACTION
MICROORGANISMS
MINES
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PHENOLS
POPULATION DENSITY
POPULATIONS
PROTOZOA
PYRIDINE
PYRIDINES
SULFUR COMPOUNDS
TETRAHYMENA
THERMOCHEMICAL PROCESSES
TOXICITY