Sources of Polycyclic Aromatic Hydrocarbons and Hexachlorobenzene in Spruce Needles of Eastern Alaska
| Autor: | Richard J. Stolzberg, Timothy Howe, Shane Billings |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Chrysene
chemistry.chemical_classification Fluoranthene Anthracene Persistent organic pollutant Mineralogy Polycyclic aromatic hydrocarbon Incineration General Chemistry Hexachlorobenzene Phenanthrene Lipids Fungicides Industrial Plant Leaves chemistry.chemical_compound chemistry Environmental chemistry Environmental Chemistry Pyrene Picea Polycyclic Aromatic Hydrocarbons Alaska Environmental Monitoring |
| Zdroj: | Environmental Science & Technology. 38:3294-3298 |
| ISSN: | 1520-5851 0013-936X |
| DOI: | 10.1021/es034751n |
| Popis: | The concentrations of phenanthrene, anthracene, fluoranthene, pyrene, benzo[a]anthracene, chrysene, and hexachlorobenzene (HCB) were measured in spruce needles at 36 sites in eastern Alaska during early spring. Concentrations of each polycyclic aromatic hydrocarbon (PAH) varied by an order of magnitude. Samples taken from near the city of Fairbanks had higher concentrations than samples taken from more rural areas. Anthropogenic activities near Fairbanks are most likely a source of PAHs. Variation in the concentration ratios of isomeric PAHs indicates the relative importance of combustion and petrogenic sources. The relative combustion contribution is largest in coastal samples and smallest near Fairbanks. In contrast, the concentration of HCB varied by only a factor of 2. Lipid content of needles and distance from the coast were the major factors correlated with the concentration of HCB. |
| Databáze: | OpenAIRE |
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