Toxicity of coal-distillates to Spirodela polyrrhiza

Journal Article · Wed Aug 01 00:00:00 EDT 1984 · Bull. Environ. Contam. Toxicol.; (United States)

DOI:https://doi.org/10.1007/BF01625534· OSTI ID:6529648

King, J M; Coley, K S

The purpose of this study was to evaluate growth responses of an aquatic vascular plant, Spirodela polyrrhiza, to water-soluble fractions of raw and hydrotreated coal-distillates. S. polyrrhiza is easy to grow in laboratory culture and its growth responses are readily determined by macroscopic observation of changes in frond number. Raw and hydrotreated coal-distillates were chosen as test compounds because hydrotreatment of increasing severity reduced concentrations of aromatic hydrocarbons in coal-distillates, thereby lessening their toxicity to algae. These distillates thus provide a means of determining the influence of sequential reductions in concentrations of aromatic hydrocarbons on the growth of Spirodela polyrrhiza and for comparing the responses of this plant to those obtained with algae.

• Research Organization: Murray State Univ., KY
• OSTI ID: 6529648
• Journal Information: Bull. Environ. Contam. Toxicol.; (United States), Vol. 33:2
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
COAL LIQUIDS
TOXICITY
WATER HYACINTHS
PLANT GROWTH
ALGAE
AROMATICS
DISTILLATES
HYDROCARBONS
WATER POLLUTION
AQUATIC ORGANISMS
FLUIDS
GROWTH
LIQUIDS
ORGANIC COMPOUNDS
PLANTS
POLLUTION
010900* - Coal
Lignite
& Peat- Environmental Aspects