Distribution of Polycyclic Aromatic Hydrocarbons (PAHs) in Pore Water and Sediment of a Small Aquatic Ecosystem
| Autor: | P. Spitzauer, Antonius Kettrup, Jürgen Maguhn, Jian P. Gao |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
chemistry.chemical_classification
Fluoranthene Anthracene Health Toxicology and Mutagenesis Public Health Environmental and Occupational Health Soil Science Sediment Phenanthrene Pollution Analytical Chemistry chemistry.chemical_compound Hydrocarbon chemistry Environmental chemistry Environmental Chemistry Pyrene Organic matter Water pollution Waste Management and Disposal Water Science and Technology |
| Zdroj: | International Journal of Environmental Analytical Chemistry. 69:227-242 |
| ISSN: | 1029-0397 0306-7319 |
| Popis: | The concentrations of polycyclic aromatic hydrocarbons (PAHs) were measured both in pore water and solid sediment isolated from the Teufelsweiher pond, a small aquatic ecosystem in Upper Bavaria (Germany) from 1992 to 1994. All 16 EPA priority compounds were present with mean total concentrations from 501 to 663 ng/1 in the pore water and 976–1600 μg/kg (dry weight) in the solid sediment. Fluoranthene and pyrene were the dominant compounds and accounted for 21–28% of the total PAHs, the ratios of fluoranthene/pyrene and phenanthrene/anthracene ranging from 1.61–2.86 and 0.86–1.57, respectively. These results suggest that the main sources of PAHs are incomplete combustion processes of fossil fuel; the compounds are then transported into the Teufelsweiher by deposition and runoff. The distribution of PAH concentrations exhibit a pronounced dependence on both particle size and organic matter content of the sediment: two fractions (< 6.3 μm and 63–200 μm), containing higher contents of organic matter... |
| Databáze: | OpenAIRE |
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