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HERO ID
2064242
Reference Type
Journal Article
Title
Bioaccumulation and the soil factors affecting the uptake of arsenic in earthworm, Eisenia fetida
Author(s)
Lee, B-T; Lee, S-W; Kim, K-R; Kim, K-W
Year
2013
Is Peer Reviewed?
Yes
Journal
Environmental Science and Pollution Research
ISSN:
0944-1344
EISSN:
1614-7499
Volume
20
Issue
12
Page Numbers
8326-8333
Language
English
PMID
24026203
DOI
10.1007/s11356-013-2087-x
Web of Science Id
WOS:000327498600003
Abstract
To better understand arsenic (As) bioaccumulation, a soil invertebrate species was exposed to 17 field soils contaminated with arsenic due to mining activity. Earthworms (Eisenia fetida) were kept in the soils for 70 days under laboratory conditions, as body burden increased and failed to reach equilibrium in all soils. After 70 days of exposure, XANES spectra determined that As was biotransformed to a highly reduced form. Uptake kinetics for As was calculated using one compartment model. Stepwise multiple regression suggested that sorbed As in soils are bioaccessible, and uptake is governed by soil properties (iron oxide, sulfate, and dissolved organic carbon) that control As mobility in soils. As in soil solution are highly related to uptake rate except four soils which had relatively high chloride or phosphate. The results imply that uptake of As is through As interaction with soil characteristics as well as direct from the soil solution. Internal validation showed that empirically derived regression equations can be used for predicting As uptake as a function of soil properties within the range of soil properties in the data set.
Keywords
Earthworm; Arsenic; Uptake; Soil property; Multiple regression; Bioaccumulation; Biotransformation
Tags
IRIS
•
Arsenic Hazard ID
PubMed
Considered New
PubMed
Considered New
PubMed
WOS
Considered New
2. Lit Search Updates through Oct 2015
PubMed
WOS
Considered
7. Other Studies through Oct 2015
Ecology
•
Arsenic (Inorganic)
1. Literature
Lit search updates through Oct 2015
3. Hazard ID Screening
Other potentially supporting studies
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