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Effects of chronic exposure to coal-derived oil on freshwater ecosystems: I. Microcosms

Franco, P.J.; Giddings, J.M.; Herbes, S.E.; Hook, L.A.; Newbold, J.D.; Roy, W.K.; Southworth, G.R.; Stewart, A.J.

Environmental Toxicology and Chemistry 3(3): 447-463

1984


ISSN/ISBN: 0730-7268
DOI: 10.1002/etc.5620030309
Accession: 061765226

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Sixteen 67-liter freshwater microcosms were treated for 8 weeks with an unrefined coal-oil in amounts ranging from 0.03 to 7 ml per week. Phenols make up 95% of the water-soluble compounds in this oil, and dissolved phenol concentrations averaged <0.01 mg L-1 in the lowest dose and 10 mg L-1 in the highest. The microcosms were severely damaged at the highest treatment level; macrophytes, zooplankton and insects were eliminated, and the ecosystems became anaerobic.

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