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Table of Environmental Monitoring Studies
Figure 1. Cyclic Siloxanes Environmental Research and Monitoring Timeline (Revised 6-16-09)
Figure 2. Cyclic Siloxanes - Table of Key Ongoing Studies and Interim Reports (Revised 6-15-09)
Figure 3. Cyclic Siloxanes - Table of Key Ongoing Studies and Interim Reports continued (Revised 6-15-09)
Figure 4. Cyclic Siloxanes - Table of Key Ongoing Studies and Interim Reports continued (Revised 6-15-09)
Text versions of Figures 2, 3 and 4
|Project||PBT Endpoint||Sponsor||Sample Collection / Processing||Draft Report||Final Report||Status|
|Lake Pepin: Aquatic food web Monitoring||Biomagnification in|
aquatic food web
|DNR - May-2008 of and Dow Corning HES Lab||Oct. 2008 (Completed and sent to Environment Canada and UK)||March 2009||Draft report submitted -|
Final report complete.
Needs to be submitted to
EC and UK along with
B Modeling report
|Lake Pepin B Modeling||Trophic|
|Dow Corning HES Lab and HydroQual, Inc||March 2009||June 2009||Modeling results mirror|
those obtained in the food
chain monitoring of Lake
Pepin (TMF is below 1).
A poster was presented
at SETAC North
America utilizing the
AQUAWEB model and
at SETAC EU. A draft
report from HydroQual
is under review.
|Lake Pepin Sediment Monitoring||Fate and Transport||Silicone|
|Dow Corning HES Lab, Evonik Analytical Lab||July 2009||Dec 2009||Initial sediment|
monitoring was conducted
in 2006, 2007, 2008 and
will be sampled again
|Lake Pepin: Terrestrial food web||Biomagnification|
in terrestrial food web
|DNR and Dow Corning HES Lab||June 2009||Sept 2009||Mink have been|
Analysis should be
complete by June 2009.
|Lake Pepin QWASI Modeling||Fate and transport|
prediction with comparison to monitoring data
|Cranfield University||May 2009||July 2009||First draft report has|
been circulated for review.
|Lake Opeongo: Aquatic monitoring||Bioaccumulation|
in aquatic biota
|Environment Canada and Dow Corning HES Lab||March. 2009 (Delayed due to QC issues)||July 2009||Detection limits not|
sufficient for food web
assessment. A draft
report should be issued
in the next month.
|Lake Ontario/Toronto Harbor Sediment Monitoring||Fate and transport||Silicone|
|Environment Canada and||Complete||Complete||Complete|
|Lake Ontario QWASI Modeling||Fate and transport|
|Cranfield University||May 2009||July 2009||First draft of report|
has been circulated for review.
|Lake Ontario/Lake Superior Lake Trout||Bioaccumulation|
in aquatic biota
|Environment Canada and Dow Corning HES Lab||March 2009 (Delayed due to QC issues)||July 2009||Additional sampling|
is being considered.
|Inter-lab comparison of Reference biota samples with and without siloxanes||Analytical Method|
inter lab validation
|Environment Canada, Norwegian Pollution Control (NILU), Dow Corning HES Lab, Evonik Analytical Lab, Stockholm University||August 2009||Dec. 2009||Samples have been|
purchased and processed
for transfer to laboratories.
Whole fish handling and
processing will also
|Norway inter-lab comparison: Analysis of Cod Livers||Analytical Method|
|Norwegian Pollution Control, Dow Corning HES Lab, Evonik Analytical Lab||March 2009||June 2009||Final report in progress.|
Final reviews and edits
of the data underway.
|Remote monitoring||Long-range transport||Silicone|
|Norwegian Pollution Control, Dow Corning HES Lab, Evonik Analytical Lab||April 2009||Sept 2009||Samples collected from|
Norway in November
2008. Analysis complete.
presented by CES at
SETAC EU Workshop.
|Oslo Fjord: Aquatic food web||Bioaccumulation/|
in aquatic food web
|Norwegian Pollution Control, Dow Corning HES Lab, Evonik Analytical Lab||May 2009||Oct. 2009||Samples collected from|
the Norway in November.
Analysis underway Draft
expected by end of April
2009. This is dependant
on outside analysis of lipid
and isotopic fractionation.
|Oslo Fjord - CoZMO-POP and multi-compartment QWASI-based modelling of Oslo Fjord (= Oslofjord POP Model)||Transport Fate and prediction with|
|Cranfield University||April 2009||Oct 2009||of Oslo First draft|
of Oslo Fjord (= Oslofjord
POP Model) circulated
|Remote Sweden Biota (D5 only)||Bioaccumulation in aquatic biota||Unilever||Stockholm University||Feb 2009 (Poster)||Dec 2009||presented at Poster SETAC|
North America (Poster
provided to EC and UK)
|CoZMo-POP Model for Persistent Organic Pollutants: Baltic proper region with the "Coastal Zone"||Fate and Transport prediction||Silicone|
|Cranfield University||May 2009||July 2009||Draft Report in progress|
|Report on dynamic and temperature dependent modeling of Lake Ontario and Lake Pepin||Fate and Transport||Silicone|
|Cranfield University||Sept. 2009||Dec. 2009||Modeling ongoing|
|Atmospheric Degradation Study of D4 and D5||P -- ½ life in air||Silicone|
|University of Iowa/Dow Corning||March 2009 (University of Iowa were delayed due to flooding of their labs)||Aug. 2009||Additional work continues|
to show that that partitioning
to aerosol surfaces with reaction
on the surface may constitute
an important loss pathway
for the relatively volatile
siloxane species in the
environment. 2 reports
have been issued by the
University of Iowa and
the work was presented
at the Canadian Workshop.
Preliminary DC work was
presented at SETAC EU.
|Aerobic transformation of D4 in water/ sediment systems||P -- ½ life in sediment||Silicone|
|Dow Corning HES Lab||April 2009||July 2009||Preliminary study complete and results submitted to UK Environment Canada and UK. Definitive study nearing completion.|
|Aerobic transformation of D5 in water/sediment systems||P -- ½ life in sediment||Silicone|
|Dow Corning HES Lab||Nov. 2009||Dec. 2009||Preliminary study nearing completion and definitive study just initiated.|
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