Interim report of the HELCOM CORESET project

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Monitoring the compound
Status of monitoring network (geographical and temporal coverage)
Table 3.16. Monitoring of TBT concentrations and imposex in the Baltic Sea.
Country Water Sediments Biota
Denmark 40 samples per year (rotating sam- Standard mussel program –
pling scheme)
~66 samples, shellfi sh directive
– ~13 samples, fl ounder
– ~12 stations per year.
Estonia Screening studies
(2008/2009) within
HELCOM BSAP project in
muscle of Perca fl uviatilis
and Clupea harrengus.
Finland Since 2009 monitoring of organotin
compounds is planned and station
net is not decided yet. Sampling frequency
>5yr.
Germany Since 2010 6 station
in coastal area 8 times
per year.
Latvia Screening of 4 rivers
estuaries (2009/2010):
3 largest rivers of the
Gulf of Riga, 1 river of
the Baltic Proper.
Lithuania Since 2010 national
monitoring program:
yearly sampling at 4
stations in the coastal
area, 2 station in the
harbour area and 2
stations in the Curonian
Lagoon.
Since 1996 10 stations: 5 coastal and
5 open area 2 times per year,
since 1998 47 stations all in coastal
area every 2-3 years.
Screening of 4 rivers estuaries
(2009/2010):
3 largest rivers of the Gulf of Riga, 1
river of the Baltic Proper.
Planned in national monitoring
program from 2011: yearly sampling
at 4 stations in the coastal area, 2
station in the harbour area and 3
stations in the Curonian Lagoon.
Since 2009 yearly monitoring of TBT
in Klaipeda harbour area (several stations)
performed by authorities of
harbour.
Since 2009 yearly organotin
compounds measurements
in perches and herrings from
7 – 9 sampling areas.
Biota since 1998 2 coastal
areas 2 times per year.
Screening studies
(2008/2009) within
HELCOM BSAP project in
muscle of Perca fl uviatilis
and Clupea harrengus.
Screening studies
(2008/2009) within
HELCOM BSAP project in
muscle of Perca fl uviatilis
and Clupea harrengus.
Poland
Russia
Data from publications. Data from publications.
Sweden Monitored yearly in coastal areas Yearly in Hydrobia ulvae at
at 13 reference (no local discharges 12 stations (5 geographical
known) stations.
regions). Coastal areas.