التفاصيل البيبلوغرافية
| العنوان: |
Comparative Sorption of Phenanthrene and Benzo[α]pyrene to Soil Humic Acids. |
| المؤلفون: |
Zhang, Jinghuan1 (AUTHOR), He, Mengchang1 (AUTHOR) hemc@bnu.edu.cn, Deng, Huanzhe1 (AUTHOR) |
| المصدر: |
Soil & Sediment Contamination. Nov/Dec2009, Vol. 18 Issue 6, p725-738. 14p. 2 Charts, 4 Graphs. |
| مصطلحات موضوعية: |
*SOIL absorption & adsorption, *PHENANTHRENE, *HUMIC acid, *BENZOPYRENE, *ALIPHATIC compounds, *RED soils |
| مصطلحات جغرافية: |
CHINA |
| مستخلص: |
Sorption of phenanthrene (Phen) and benzo[α]pyrene (BaP) by humic acids (HAs) extracted from four typical soils in China, including cinnamon soil, fluvo-aquic soil, red soil, and mountain meadow soil were investigated. All sorption data were fitted well by the Freundlich model, but BaP exhibited stronger and more nonlinear sorption than Phen by a given HA. For Phen isotherms, there was a positive relation between Koc values and aliphaticity of HAs, whereas a negative correlation was observed between n values and aliphaticity. This indicated the importance of aliphatic groups in Phen sorption capacity and nonlinearity. Compared to Phen, a similar trend was obtained between n values of BaP and aliphaticity or aromatic carbon. However, no correlation existed between Koc values for BaP and aliphaticity or aromatic carbon. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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