Chemical extraction to assess the bioavailability of chlorobenzenes in soil with different aging periods
文献类型：期刊论文
| 作者 | Song, Yang1; Wang, Fang1; Yang, Xinglun1; Liu, Cuiying1; Kengara, Fredrick Orori2; Jin, Xin1; Jiang, Xin1 |
| 刊名 | JOURNAL OF SOILS AND SEDIMENTS
 |
| 出版日期 | 2011-12-01 |
| 卷号 | 11期号:8页码:1345-1354 |
| ISSN号 | 1439-0108 |
| 关键词 | Aging Bioavailability Chemical extraction Chlorobenzenes Earthworms |
| DOI | 10.1007/s11368-011-0414-8 |
| 通讯作者 | Song, Yang(ysong@issas.ac.cn) |
| 英文摘要 | Purpose Bioavailability is mainly influenced by aging and desorption of contaminants in soil. The purpose of this study was to investigate the desorption kinetics of chlorobenzenes (CBs) in soil and to investigate whether chemical extractions are suitable for the bioavailability assessment of CBs in soil. Materials and methods A soil spiked with CBs and aged for different periods was extracted with Tenax, hydroxypropyl-beta-cyclodextrin (HPCD), and butanol to assess the bioavailability of CBs in soil, respectively. Earthworm (Eisenia foetida) accumulation was used as bioassay in parallel experiments to evaluate the chemical extractions. Results and discussion The results showed that desorption of CBs from soil with consecutive Tenax extraction fitted into triphasic kinetics model. Different chemical methods extracted different amounts of CBs over different aging periods. For hexachlorobenzene (HCB), the extraction efficiency was in the order of butanol > Tenax-6h > HPCD extraction, while the order of butanol > HPCD > Tenax-6h extraction for pentachlorobenzene (PeCB). The bioaccumulation by earthworm decreased with increasing aging period and was significantly higher for HCB than for PeCB (p < 0.05). Earthworm accumulated CBs correlated well with all the three chemical extracted CBs. However, HPCD extraction showed the converse extraction tendency with earthworm uptake of CBs. Conclusions Chemical extraction could be used to assess the bioavailability of contaminants in soil; however, they were method and compound specific. Tenax and butanol extractions were more reliable than HPCD extraction for bioavailability assessment of the tested CBs and the soil used since they showed the consistent extraction tendency with earthworm uptake of CBs. |
| 收录类别 | SCI |
| WOS关键词 | POLYCYCLIC AROMATIC-HYDROCARBONS ; ORGANIC-COMPOUNDS ; POLYCHLORINATED-BIPHENYLS ; PREDICT BIOAVAILABILITY ; CONTAMINATED SEDIMENT ; PAH BIOAVAILABILITY ; DESORPTION-KINETICS ; BETA-CYCLODEXTRIN ; DISSIMILAR SOILS ; AVAILABILITY |
| WOS研究方向 | Geology ; Agriculture |
| WOS类目 | Geosciences, Multidisciplinary ; Soil Science |
| 语种 | 英语 |
| 出版者 | SPRINGER HEIDELBERG |
| WOS记录号 | WOS:000297257100005 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558881 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Song, Yang |
| 作者单位 | 1.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China 2.Maseno Univ, Dept Chem, Maseno 40105, Kenya |
| 推荐引用方式 GB/T 7714 | Song, Yang,Wang, Fang,Yang, Xinglun,et al. Chemical extraction to assess the bioavailability of chlorobenzenes in soil with different aging periods[J]. JOURNAL OF SOILS AND SEDIMENTS,2011,11(8):1345-1354. |
| APA | Song, Yang.,Wang, Fang.,Yang, Xinglun.,Liu, Cuiying.,Kengara, Fredrick Orori.,...&Jiang, Xin.(2011).Chemical extraction to assess the bioavailability of chlorobenzenes in soil with different aging periods.JOURNAL OF SOILS AND SEDIMENTS,11(8),1345-1354. |
| MLA | Song, Yang,et al."Chemical extraction to assess the bioavailability of chlorobenzenes in soil with different aging periods".JOURNAL OF SOILS AND SEDIMENTS 11.8(2011):1345-1354. |
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来源：南京土壤研究所
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