PMID- 29605664
OWN - NLM
STAT- MEDLINE
DCOM- 20180703
LR  - 20181202
IS  - 1090-2414 (Electronic)
IS  - 0147-6513 (Linking)
VI  - 156
DP  - 2018 Jul 30
TI  - Structural equation model of the relationship between metals in contaminated soil 
      and in earthworm (Metaphire californica) in Hunan Province, subtropical China.
PG  - 443-451
LID - S0147-6513(18)30226-4 [pii]
LID - 10.1016/j.ecoenv.2018.03.038 [doi]
AB  - Earthworms have the ability to take up heavy metals in soil and partition them in 
      different subcellular compartments. In this study, we used a structural equation 
      model (SEM) to investigate the two-step causal relationship between environmental 
      availability (EA) and environmental bioavailability (EB) of heavy metals (Cd, Cu, 
      Zn, and Pb), as reflected by their levels in soil fractions and in earthworms 
      from field-contaminated areas in Southern China. In the SEM, the correlation 
      between EA and EB reflected the bioavailability of Cd, Zn, and Pb. For Cd, the 
      causal relationship between the latent variables EA and EB was reflected by DTPA 
      fractions in soil as well as by earthworm internal and subcellular cytosol 
      fractions. The extractable and oxidizable fractions of Zn in soil influenced Zn 
      concentrations in the cytosol and debris. The DTPA and reducible Pb fractions 
      were bioavailable to earthworm internal Pb concentrations and those in cytosol 
      fractions. These results implied that the DTPA, extractable, oxidizable, or 
      reducible fractions of different metals could be the bioavailable sources to 
      earthworm internal metals and partitioned in their subcellular compartments.
CI  - Copyright (c) 2018 Elsevier Inc. All rights reserved.
FAU - Wang, Kun
AU  - Wang K
AD  - College of Resources and Environmental Science, China Agricultural University, 
      Beijing 100193, China.
FAU - Qiao, Yuhui
AU  - Qiao Y
AD  - College of Resources and Environmental Science, China Agricultural University, 
      Beijing 100193, China. Electronic address: qiaoyh0095@163.com.
FAU - Li, Huafen
AU  - Li H
AD  - College of Resources and Environmental Science, China Agricultural University, 
      Beijing 100193, China.
FAU - Zhang, Huiqi
AU  - Zhang H
AD  - College of Resources and Environmental Science, China Agricultural University, 
      Beijing 100193, China.
FAU - Yue, Shizhong
AU  - Yue S
AD  - College of Resources and Environmental Science, China Agricultural University, 
      Beijing 100193, China.
FAU - Ji, Xionghui
AU  - Ji X
AD  - Hunan Academy of Agricultural Sciences, Changsha 410125, China.
FAU - Liu, Longsheng
AU  - Liu L
AD  - Hengyang Academy of Agricultural Sciences, Hengyang 421151, China.
LA  - eng
PT  - Journal Article
PL  - Netherlands
TA  - Ecotoxicol Environ Saf
JT  - Ecotoxicology and environmental safety
JID - 7805381
RN  - 0 (Metals, Heavy)
RN  - 0 (Soil)
RN  - 0 (Soil Pollutants)
SB  - IM
MH  - Animals
MH  - Biological Availability
MH  - China
MH  - Environmental Monitoring
MH  - Metals, Heavy/*analysis
MH  - Oligochaeta/*metabolism
MH  - Soil/*chemistry
MH  - Soil Pollutants/*analysis
OTO - NOTNLM
OT  - Bioavailability
OT  - Epi-endogeic earthworm
OT  - Heavy metals
OT  - Structural equation model (SEM)
EDAT- 2018/04/02 06:00
MHDA- 2018/07/04 06:00
CRDT- 2018/04/02 06:00
PHST- 2017/12/14 00:00 [received]
PHST- 2018/03/08 00:00 [revised]
PHST- 2018/03/10 00:00 [accepted]
PHST- 2018/04/02 06:00 [pubmed]
PHST- 2018/07/04 06:00 [medline]
PHST- 2018/04/02 06:00 [entrez]
AID - S0147-6513(18)30226-4 [pii]
AID - 10.1016/j.ecoenv.2018.03.038 [doi]
PST - ppublish
SO  - Ecotoxicol Environ Saf. 2018 Jul 30;156:443-451. doi: 
      10.1016/j.ecoenv.2018.03.038.