Processes affecting the fate of monoaromatic hydrocarbons in an aquifer contaminated by crude oil

Article Abstract:

A balance between rates of dissolution and anaerobic biodegradation controls concentrations of monoaromatic hydrocarbons in a crude-oil contaminated aquifer near Bemidji, MN. Microbial degradation is the dominant process controlling the fate of these compounds as soon as groundwater moves away from the oil, as evidenced by distributions of homologous series and isomeric assemblages of alkylbenzenes. Redox conditions and biodegradation processes thus limit the transport of these monoaromatic hydrocarbons.

Environmental aspects, Biodegradation, Aquifers, Hydrocarbons, Aromatic compounds

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Effects of light intensity on the phototoxicity of flouranthene to a benthic macroinvertebrate

Article Abstract:

A model that contains chemical dose and intensity of ultraviolet light as parameters was used to determine the toxicity of flouranthene at different light intensities to a benthic macroinvertebrate, oligochaetes. The results confirmed that chemical dose and light intensity are the criteria for phototoxicity and can be used to determine the mortality of the organisms.

Health aspects, Research, Polycyclic aromatic hydrocarbons, Toxicity, Effect of temperature on

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Sources, distribution, and water column processes of aliphatic and poly aromatic hydrocarbons in the Northwestern Black Sea water

Article Abstract:

The Western Black Sea has yielded both aliphatic and aromatic hydrocarbons suspended in particulate matter. The higest concentrations of hydrocarbons were detected in the Dniester, Dnieper and Danube river estuaries.

Europe, Pollutants produced & recycled, Aliphatic Hydrocarbons, Pollution, Chemical industry, Danube River, Black Sea

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