schliessen

Filtern

 

Bibliotheken

Trace metals in porewater of surface sediments and their bioavailability in Jiaozhou Bay, Qingdao, China

Samples of porewater and the edible tissue of mottled clams, Ruditapes variegatus , were collected simultaneously at each of 12 stations from Jiaozhou Bay near Qingdao, China, in June of 2003. Chemical analysis focused on trace metals and major elements. Porewater concentrations of Cd, Cr, Pb, and Z... Full description

Journal Title: Environmental Earth Sciences 2011, Vol.64(6), pp.1641-1646
Main Author: Ye, Siyuan
Other Authors: Laws, Edward , Ding, Xigui , Yuan, Hongming , Zhao, Guangming , Wang, Jin
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 1866-6280 ; E-ISSN: 1866-6299 ; DOI: 10.1007/s12665-010-0719-8
Zum Text:
SendSend as email Add to Book BagAdd to Book Bag
Staff View
recordid: springer_jour10.1007/s12665-010-0719-8
title: Trace metals in porewater of surface sediments and their bioavailability in Jiaozhou Bay, Qingdao, China
format: Article
creator:
  • Ye, Siyuan
  • Laws, Edward
  • Ding, Xigui
  • Yuan, Hongming
  • Zhao, Guangming
  • Wang, Jin
subjects:
  • Trace metals
  • Bioavailability
  • Species
  • Porewater
  • Geochemical modeling
  • Jiaozhou Bay
  • China
ispartof: Environmental Earth Sciences, 2011, Vol.64(6), pp.1641-1646
description: Samples of porewater and the edible tissue of mottled clams, Ruditapes variegatus , were collected simultaneously at each of 12 stations from Jiaozhou Bay near Qingdao, China, in June of 2003. Chemical analysis focused on trace metals and major elements. Porewater concentrations of Cd, Cr, Pb, and Zn were distributed in a bimodal fashion among the 12 stations, with mean concentrations at six of the stations being 8–32 times mean values at the other six stations. The concentrations of the same metals in clams were remarkably similar among stations, the coefficients of variation being only 12–37%. Calculations performed with the computer program PHREEQC indicated that Pb and Cr in porewater were present only in the +2 and +3 states, respectively, and because dissolved Cd and Zn exist only in the +2 state, the bimodal distribution of these four metals likely reflects secondary effects associated with their scavenging by Fe and/or Mn under oxidizing conditions and subsequent dissolution in the reducing environment of the porewaters. Consistent with this hypothesis is the fact that the distribution of high and low metal concentrations was closely correlated with the granularity of the sediment, with lower metal concentrations associated with relatively coarse sediment. Comparison of published biological concentration factors with the ratios of metal concentrations in the clams to porewater metal concentrations indicated that the porewaters were not the primary sources of the metals in the clams. Mixing processes in the bay likely account for the rather uniform concentrations of metals in clam tissue.
language: eng
source:
identifier: ISSN: 1866-6280 ; E-ISSN: 1866-6299 ; DOI: 10.1007/s12665-010-0719-8
fulltext: fulltext_linktorsrc
issn:
  • 1866-6299
  • 18666299
  • 1866-6280
  • 18666280
url: Link


@attributes
ID1228033515
RANK0.07
NO1
SEARCH_ENGINEprimo_central_multiple_fe
SEARCH_ENGINE_TYPEPrimo Central Search Engine
LOCALfalse
PrimoNMBib
record
control
sourcerecordid10.1007/s12665-010-0719-8
sourceidspringer_jour
recordidTN_springer_jour10.1007/s12665-010-0719-8
sourcesystemOther
pqid1020988133
galeid271058326
display
typearticle
titleTrace metals in porewater of surface sediments and their bioavailability in Jiaozhou Bay, Qingdao, China
creatorYe, Siyuan ; Laws, Edward ; Ding, Xigui ; Yuan, Hongming ; Zhao, Guangming ; Wang, Jin
ispartofEnvironmental Earth Sciences, 2011, Vol.64(6), pp.1641-1646
identifier
subjectTrace metals ; Bioavailability ; Species ; Porewater ; Geochemical modeling ; Jiaozhou Bay ; China
descriptionSamples of porewater and the edible tissue of mottled clams, Ruditapes variegatus , were collected simultaneously at each of 12 stations from Jiaozhou Bay near Qingdao, China, in June of 2003. Chemical analysis focused on trace metals and major elements. Porewater concentrations of Cd, Cr, Pb, and Zn were distributed in a bimodal fashion among the 12 stations, with mean concentrations at six of the stations being 8–32 times mean values at the other six stations. The concentrations of the same metals in clams were remarkably similar among stations, the coefficients of variation being only 12–37%. Calculations performed with the computer program PHREEQC indicated that Pb and Cr in porewater were present only in the +2 and +3 states, respectively, and because dissolved Cd and Zn exist only in the +2 state, the bimodal distribution of these four metals likely reflects secondary effects associated with their scavenging by Fe and/or Mn under oxidizing conditions and subsequent dissolution in the reducing environment of the porewaters. Consistent with this hypothesis is the fact that the distribution of high and low metal concentrations was closely correlated with the granularity of the sediment, with lower metal concentrations associated with relatively coarse sediment. Comparison of published biological concentration factors with the ratios of metal concentrations in the clams to porewater metal concentrations indicated that the porewaters were not the primary sources of the metals in the clams. Mixing processes in the bay likely account for the rather uniform concentrations of metals in clam tissue.
languageeng
source
version5
oafree_for_read
lds50peer_reviewed
links
openurl$$Topenurl_article
linktorsrc$$Uhttp://dx.doi.org/10.1007/s12665-010-0719-8$$EView_full_text_in_Springer
openurlfulltext$$Topenurlfull_article
search
creatorcontrib
0Ye, Siyuan, A.
1Laws, Edward, A.
2Ding, Xigui, A.
3Yuan, Hongming, A.
4Zhao, Guangming, A.
5Wang, Jin, A.
titleTrace metals in porewater of surface sediments and their bioavailability in Jiaozhou Bay, Qingdao, China
descriptionSamples of porewater and the edible tissue of mottled clams, Ruditapes variegatus , were collected simultaneously at each of 12 stations from Jiaozhou Bay near Qingdao, China, in June of 2003. Chemical analysis focused on trace metals and major elements. Porewater concentrations of Cd, Cr, Pb, and Zn were distributed in a bimodal fashion among the 12 stations, with mean concentrations at six of the stations being 8–32 times mean values at the other six stations. The concentrations of the same metals in clams were remarkably similar among stations, the coefficients of variation being only 12–37%. Calculations performed with the computer program PHREEQC indicated that Pb and Cr in porewater were present only in the +2 and +3 states, respectively, and because dissolved Cd and Zn exist only in the +2 state, the bimodal distribution of these four metals likely reflects secondary effects associated with their scavenging by Fe and/or Mn under oxidizing conditions and subsequent dissolution in the reducing environment of the porewaters. Consistent with this hypothesis is the fact that the distribution of high and low metal concentrations was closely correlated with the granularity of the sediment, with lower metal concentrations associated with relatively coarse sediment. Comparison of published biological concentration factors with the ratios of metal concentrations in the clams to porewater metal concentrations indicated that the porewaters were not the primary sources of the metals in the clams. Mixing processes in the bay likely account for the rather uniform concentrations of metals in clam tissue.
subject
0Trace metals
1Bioavailability
2Species
3Porewater
4Geochemical modeling
5Jiaozhou Bay
6China
general
010.1007/s12665-010-0719-8
1English
2Springer Science & Business Media B.V.
3SpringerLink Open Access
sourceidspringer_jour
recordidspringer_jour10.1007/s12665-010-0719-8
issn
01866-6299
118666299
21866-6280
318666280
rsrctypearticle
creationdate2011
addtitle
0Environmental Earth Sciences
1Environ Earth Sci
searchscopespringer_free
scopespringer_free
lsr30VSR-Enriched:[pqid, pages, galeid]
sort
titleTrace metals in porewater of surface sediments and their bioavailability in Jiaozhou Bay, Qingdao, China
authorYe, Siyuan ; Laws, Edward ; Ding, Xigui ; Yuan, Hongming ; Zhao, Guangming ; Wang, Jin
creationdate20111100
facets
frbrgroupid3161503714252796034
frbrtype5
languageeng
creationdate2011
topic
0Trace Metals
1Bioavailability
2Species
3Porewater
4Geochemical Modeling
5Jiaozhou Bay
6China
collectionSpringerLink Open Access
prefilterarticles
rsrctypearticles
creatorcontrib
0Ye, Siyuan
1Laws, Edward
2Ding, Xigui
3Yuan, Hongming
4Zhao, Guangming
5Wang, Jin
jtitleEnvironmental Earth Sciences
toplevelpeer_reviewed
delivery
delcategoryRemote Search Resource
fulltextfulltext_linktorsrc
addata
aulast
0Ye
1Laws
2Ding
3Yuan
4Zhao
5Wang
aufirst
0Siyuan
1Edward
2A.
3Xigui
4Hongming
5Guangming
6Jin
au
0Ye, Siyuan
1Laws, Edward
2Ding, Xigui
3Yuan, Hongming
4Zhao, Guangming
5Wang, Jin
atitleTrace metals in porewater of surface sediments and their bioavailability in Jiaozhou Bay, Qingdao, China
jtitleEnvironmental Earth Sciences
stitleEnviron Earth Sci
risdate201111
volume64
issue6
spage1641
epage1646
issn1866-6280
eissn1866-6299
genrearticle
ristypeJOUR
abstractSamples of porewater and the edible tissue of mottled clams, Ruditapes variegatus , were collected simultaneously at each of 12 stations from Jiaozhou Bay near Qingdao, China, in June of 2003. Chemical analysis focused on trace metals and major elements. Porewater concentrations of Cd, Cr, Pb, and Zn were distributed in a bimodal fashion among the 12 stations, with mean concentrations at six of the stations being 8–32 times mean values at the other six stations. The concentrations of the same metals in clams were remarkably similar among stations, the coefficients of variation being only 12–37%. Calculations performed with the computer program PHREEQC indicated that Pb and Cr in porewater were present only in the +2 and +3 states, respectively, and because dissolved Cd and Zn exist only in the +2 state, the bimodal distribution of these four metals likely reflects secondary effects associated with their scavenging by Fe and/or Mn under oxidizing conditions and subsequent dissolution in the reducing environment of the porewaters. Consistent with this hypothesis is the fact that the distribution of high and low metal concentrations was closely correlated with the granularity of the sediment, with lower metal concentrations associated with relatively coarse sediment. Comparison of published biological concentration factors with the ratios of metal concentrations in the clams to porewater metal concentrations indicated that the porewaters were not the primary sources of the metals in the clams. Mixing processes in the bay likely account for the rather uniform concentrations of metals in clam tissue.
copBerlin/Heidelberg
pubSpringer-Verlag
doi10.1007/s12665-010-0719-8
pages1641-1646
oafree_for_read
date2011-11