TY - JOUR
T1 - Comparison of chemical speciation of copper in the Oosterschelde and Westerschelde estuaries, The Netherlands
AU - Gerringa, L.J.A.
AU - Poortvliet, T.C.W.
AU - Hummel, H.
N1 - Reporting year: 1996
Metis note: 2004; CEME; MM; file:///L:/Endnotedatabases/NIOOPUB/pdfs/Pdfs1996/Gerringa_ea_2004.pdf
PY - 1996
Y1 - 1996
N2 - The aim of this investigation was to assess the chemical speciation of copper. Although the Cu concentrations in both the dissolved and particulate phases differ strongly between the Oosterschelde (OS) and Westerschelde (WS) estuaries, The Netherlands, the Cu content of the bivalve Macoma balthica from both sea arms is comparable. Therefore, chemical speciation of Cu was examined during 1 year at Mo sites, one in each sea arm. Two dissolved organic ligand groups could be distinguished. For both sea arms, a relatively weak ligand group with logK'=9.27 and a mean ligand concentration of 250 neq Cu l(-1) was determined. Moreover, a relatively strong group was detected with logK'=13.04 and a mean ligand concentration of 180 neq Cu l(-1) in the WS, and with logK'=13.7 and a mean ligand concentration of 48 neq Cu l(-1) in the OS. In both sea arms, the calculated free concentration of CU2+ is extremely low (
AB - The aim of this investigation was to assess the chemical speciation of copper. Although the Cu concentrations in both the dissolved and particulate phases differ strongly between the Oosterschelde (OS) and Westerschelde (WS) estuaries, The Netherlands, the Cu content of the bivalve Macoma balthica from both sea arms is comparable. Therefore, chemical speciation of Cu was examined during 1 year at Mo sites, one in each sea arm. Two dissolved organic ligand groups could be distinguished. For both sea arms, a relatively weak ligand group with logK'=9.27 and a mean ligand concentration of 250 neq Cu l(-1) was determined. Moreover, a relatively strong group was detected with logK'=13.04 and a mean ligand concentration of 180 neq Cu l(-1) in the WS, and with logK'=13.7 and a mean ligand concentration of 48 neq Cu l(-1) in the OS. In both sea arms, the calculated free concentration of CU2+ is extremely low (
U2 - 10.1006/ecss.1996.0041
DO - 10.1006/ecss.1996.0041
M3 - Article
VL - 42
SP - 629
EP - 643
JO - Estuarine Coastal and Shelf Science
JF - Estuarine Coastal and Shelf Science
SN - 0272-7714
IS - 5
ER -