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Search for unidentified PCB sources in Swedish stream using
semi permeable membrane devices
Umeå
*Per-Anders
Kaunas
Bergqvist,, Ilona Jegorova, *Lijana Augulyte, Audrone Zaliauskiene
Environmental Engineering, Kaunas University of Technology,
Kaunas, Lithuania
*Environmental Chemistry, Umeå University, SE-901 87 Umeå, Sweden
Introduction
Results and discussion
0,0200
0,0180
0,0160
0,0140
0,0120
Concentration,
0,0100
ng/L
0,0080
Damm
Vinkelvägen
0,0060
Rödängsvägen
Timotejvägen
0,0040
Järnvägen (top)
Järnvägen (bottom)
0,0020
Klockarbäcken
0,0000
Trisab
0,03
0,025
0,02
Concentration,
0,015
ng/L
0,01
0,005
0
PC
PC B5
PC B5 4
PC B5 3
PC B4 1
PC B4 5
PC PC B5 6
B4 B 2
PC
8+ 49
B4
1+ PCB 47
64 PC 44
+7 B4
PC1+7 2
PC PC B7 2
PC B8 B7 4
B6 0+ 0
6
PC0+5 6
PC B8 6
B7 1
7
Piparböle
Field blank
PC
P C B1
P C P C B1 9
P C B2 B1 8
P C B1 7+2 7
4
P C B2 6+3
B2 6+2 2
P C8+3 5
1
B
PC 3
3
P C B2
B3 2
7
PentaCB concentrations in sampling places
Damm
Vinkelvägen
Rödängsvägen
Timotejvägen
Järnvägen (top)
Järnvägen (bottom)
Klockarbäcken
Trisab
Piparböle
Field blank
HexaCB concentrations in sampling places
0,045
0,06
0,04
0,05
0,035
0,03
0,04
Concentration, 0,025
ng/L
0,02
Concentration,
0,03
ng/L
0,015
0,01
0,005
PC
B8 P B10
4+ CB 4
8 9
PC PC 9+ 5
B9 B1 92
9 0
PC +11 1
B 3
PC 119
PC B97
PC B
8
PC B11 7
PC B12 0
3
B
PC 11
8
PC B11
4
B
PC 10
B1 5
26
0
Damm
Vinkelvägen
Rödängsvägen
Timotejvägen
Järnvägen (top)
Järnvägen (bottom)
Klockarbäcken
Trisab
Piparböle
Field blank
0,02
0,01
0
Damm
Vinkelvägen
Rödängsvägen
T imotejvägen
Järnvägen (top)
Järnvägen (bottom)
Klockarbäcken
T risab
Piparböle
Field blank
PC
Materials and methods
To investigate the bioavailable time weight
average concentrations of PCBs in the stream
of the ??? different sites (map), passive
sampling was performed in summer 2003
using semipermeable membranes devices.
To provide controls for the exposure during
deployment in the field, two single SPMDs
were exposed to air during deployment and
retrieval in the same manner as the SPMD
samples.
The SPMDs were then dialyzed in
cyclopentane: dichlormethane. 40 µl of labeled
C13 and deutered compounds were used as
internal standards were added to the extract
and then remaining lipids were separated from
the POPs by using high-resolution gel
permeation chromatography (HR-GPC). To the
sample 40 l of recovery standard
dibenzofurane (RS) was added. The analysis of
organic compounds was done using highresolution gas chromatography/low-resolution
mass spectrometry (HRGC/LRMS) - system
operating in selected ion recording (SIR)
mode.
TetraCB concentrations in sampling places
TriCB concentrations in sampling places
PC
B
PC PCB 15
B1PC 14 5
B
3
PC P 5+ 15 8
B1 CB 14 1
PC P53+ 14 4
B1 CB 16 9
6 1 8
PC3+1 30
PC B1 64
PC B1 38
PC B1 58
PC B1 28
PC B1 67
PC B1 56
B1 57
69
In 2003 several places polluted by PCB was
identified in the stream Tvärån, Umeå city.
Present study aims to identify the sources of
PCB pollution to the stream. Sampling was
performed in the area between the beginning of
industrial site and intake to the river Umeå.
Pollutant concentrations in the stream water
fluctuate very rapidly depending on occasional
releases and rain events. In order to obtain time
average concentration of PCBs congeneres
during few weeks integrative passive sampling
method was chosen.
HeptaCB concentrations in sampling places
OctaCB concentrations in sampling places
0,03
0,025
0,02
Concentration,
0,015
ng/L
0,01
0,005
0
PC
B
PC 18
B 8
PC 17
B 9
P C 17
B 6
PC 17
B 8
PC 187
B1
PC 8
B 3
PC 174
B
PC 177
B
PC 171
B
PC 180
B1
PC 91
B
PC 170
B1
89
Conclusions:
• Integrated sampling method and PCBcongener analysis have allowed to identify
PCB pollution sources
•
Damm
Vinkelvägen
Rödängsvägen
Timotejvägen
Järnvägen (top)
Järnvägen (bottom)
Klockarbäcken
Trisab
Piparböle
Field blank
Sum PCB concentrations in sampling places
Acknowledgements – We wish to acknowledge Umea University, Socrates program and
Kaunas University of Technology for financial support.
Total PCB concentrations in sampling places