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Polycyclic AromaticHydrocarbons in Soilof the Canadian RiverFloodplain inOklahoma Fábio SartoriTerry L. WadeJosé L. Sericano2010 год

Polycyclic Aromatic Hydrocarbons in Soil of the Canadian River Floodplain in Oklahoma
статья из журнала

Страница публикацииПубликация в OpenAlex
Аннотация: The accumulation of polycyclic aromatic hydrocarbons (PAH) in soil, plants, and water may impart negative effects on ecosystem and human health. We quantified the concentration and distribution of 41 PAH ( n = 32), organic C, total N, and S ( n = 140) and investigated PAH sources using a chronosequence of floodplain soils under a natural vegetation succession. Soil samples were collected between 0‐ and 260‐cm depth in bare land (the control), wetland, forest, and grassland areas near a closed municipal landfill and an active asphalt plant (the contaminant sources) in the north bank of the Canadian River near Norman, OK. Principal component, cluster, and correlation analyses were used to investigate the spatial distribution of PAH, in combination with diagnostic ratios to distinguish pyrogenic vs. petrogenic PAH suites. Total PAH concentration (ΣPAH) had a mean of 1300 ng g −1 , minimum of 16 ng g −1 , and maximum of 12,000 ng g −1 At 0‐ to 20‐cm depth, ΣPAH was 3500 ± 1600 ng g −1 (mean ± 1 SE) near the contaminant sources. The most common compounds were nonalkylated, high molecular weight PAH of pyrogenic origin, i.e., fluoranthene (17%), pyrene (14%), phenanthrene (9%), benzo(b)fluoranthene (7%), chrysene (6%), and benzo(a)anthracene (5%). ΣPAH in the control (130 ± 23 ng g −1 ) was comparable to reported concentrations for the rural Great Plains. Perylene had a unique distribution pattern suggesting biological inputs. The main PAH contamination mechanisms were likely atmospheric deposition due to asphalt production at the 0‐ to 20‐cm depth and past landfill operations at deeper depths.
Год издания: 2010
Авторы: Fábio Sartori, Terry L. Wade, José L. Sericano, Binayak P. Mohanty, Kevin A. Smith
Издательство: Wiley
Источник: Journal of Environmental Quality
Ключевые слова: Toxic Organic Pollutants Impact, Effects and risks of endocrine disrupting chemicals, Microbial bioremediation and biosurfactants
Другие ссылки: Journal of Environmental Quality (HTML)
PubMed (HTML)