RCEES OpenIR  > 环境化学与生态毒理学国家重点实验室
Bioavailability of phthalate congeners to earthworms (Eisenia fetida) in artificially contaminated soils
Hu, XY; Wen, B; Zhang, SZ; Shan, XQ
2005
Source PublicationECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
Volume62Issue:1Pages:26-34
AbstractBioavailability of phthalate congeners, dimethyl plithalate, diethyl plithalate, di-n-butyl plithalate (DBP), di-(2-ethylhexyl) plithalate (DEHP), and dioctyl plithalate, to earthworms (Eisenia fetida) were studied when earthworms were exposed to two artificially contaminated agricultural and forest soils. Only DBP and DEHP were detected in earthworms. The uptake kinetics of DBP and DEHP in earthworms was fast within the initial 10 days followed by a nearly steady state for the subsequent 20 days. An equilibrium partitioning model could be used to describe the uptake kinetics of DBP and DEHP by earthworm in two types of soils (r = 0.709-0.864). The average biota-to-soil accumulation factors (BSAFs) of DBP and DEHP at 5 mg kg(-1) in soil were 0.27 +/- 0.07 and 0.17 +/- 0.03, respectively, in agricultural soil, while the BSAFs were 0.21 +/- 0.06 and 0.07 +/- 0.02, respectively, in forest soil. The concentrations of phthalates in earthworms increased with increasing concentrations of phthalates in soil. There was a significant correlation between log C-soil and log C-worm with r = 0.999-0.993, demonstrating a single linear partitioning of phthalates between soil and earthworms. The bioavailability of DBP and DEHP was assessed by Soxhlet, methanol, and methanol-water (1:1) extraction methods. Our results indicated that the extractable amounts of freshly added DBP and DEHP in soils by these extraction methods were significantly correlated with those in earthworms. It was observed that the extractable DBP and DEHP by the methanol and methanol-water (1:1) extraction methods decreased with their increasing residence time in soil. In contrast, the amount extracted by the Soxhlet extraction method did not show a similar decline. Therefore, Soxhlet extraction was a poor indicator of the bioavailability of DBP and DEHP to earthworms in soil, which could lead to overestimation of the risk of soil-associated DBP and DEHP. The extractable DBP and DEHP by methanol and methanol-water (1: 1) significantly decreased over 440 days. Compared with the methanol-water (1: 1) extraction method, the methanol extraction method was preferred for its ability to predict the bioavailability of DBP and DEHP in aged soils. (c) 2005 Elsevier Inc. All rights reserved.
Department环境化学与生态毒理学国家重点实验室
KeywordBioavailability Phthalates Earthworms Soil Equilibrium Partitioning Model
DOI10.1016/j.ecoenv.2005.02.012
WOS Research AreaEnvironmental Sciences & Ecology ; Toxicology
WOS IDWOS:000230511100004
Citation statistics
Cited Times:24[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.rcees.ac.cn/handle/311016/23147
Collection环境化学与生态毒理学国家重点实验室
Recommended Citation
GB/T 7714
Hu, XY,Wen, B,Zhang, SZ,et al. Bioavailability of phthalate congeners to earthworms (Eisenia fetida) in artificially contaminated soils[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2005,62(1):26-34.
APA Hu, XY,Wen, B,Zhang, SZ,&Shan, XQ.(2005).Bioavailability of phthalate congeners to earthworms (Eisenia fetida) in artificially contaminated soils.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,62(1),26-34.
MLA Hu, XY,et al."Bioavailability of phthalate congeners to earthworms (Eisenia fetida) in artificially contaminated soils".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 62.1(2005):26-34.
Files in This Item: Download All
File Name/Size DocType Version Access License
Bioavailability of p(258KB) 开放获取CC BY-NC-NDView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Hu, XY]'s Articles
[Wen, B]'s Articles
[Zhang, SZ]'s Articles
Baidu academic
Similar articles in Baidu academic
[Hu, XY]'s Articles
[Wen, B]'s Articles
[Zhang, SZ]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Hu, XY]'s Articles
[Wen, B]'s Articles
[Zhang, SZ]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Bioavailability of phthalate congeners to earthworms (Eisenia fetida) in artificially contaminated soils.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.