Table of Environmental Monitoring Studies

Figure 1. Cyclic Siloxanes Environmental Research and Monitoring Timeline (Revised 6-16-09)

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 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 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)

Figure 4. Cyclic Siloxanes - Table of Key Ongoing Studies and Interim Reports continued (Revised 6-15-09)
Project PBT Endpoint Sponsor Sample Collection / Processing Draft Report Final Report Status
Lake Pepin: Aquatic food web Monitoring Biomagnification in
aquatic food web
Silicone
Industry
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
magnification modeling
Silicone
Industry
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
Industry
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
in 2009.
Lake Pepin: Terrestrial food web Biomagnification
in terrestrial food web
Silicone
Industry
DNR and Dow Corning HES Lab June 2009 Sept 2009 Mink have been
collected.
Analysis should be
complete by June 2009.
Lake Pepin QWASI Modeling Fate and transport
prediction with comparison to monitoring data
Silicone
Industry
Cranfield University May 2009 July 2009 First draft report has
been circulated for review.
Lake Opeongo: Aquatic monitoring Bioaccumulation
in aquatic biota
Silicone
Industry
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
Industry
Environment Canada and Complete Complete Complete
Lake Ontario QWASI Modeling Fate and transport
prediction with
comparison to
monitoring data
Silicone
Industry
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
Silicone
Industry
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
Silicone
Industry
and Environ-
ment Canada
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
be incorporated.
Norway inter-lab comparison: Analysis of Cod Livers Analytical Method
inter-lab validation
Silicone
Industry
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
Industry
Norwegian Pollution Control, Dow Corning HES Lab, Evonik Analytical Lab April 2009 Sept 2009 Samples collected from
Norway in November
2008. Analysis complete.
Preliminary results
presented by CES at
SETAC EU Workshop.
Oslo Fjord: Aquatic food web Bioaccumulation/
Biomagnification
in aquatic food web
Silicone
Industry
Norwegian Pollution Control, Dow Corning HES Lab, Evonik Analytical Lab May 2009 Oct. 2009 Samples collected from
the Norway in November.
Analysis underway Draft
underway. Analysis
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
comparison to
monitoring data
Silicone
Industry
Cranfield University April 2009 Oct 2009 of Oslo First draft
Fjord CoZMO-POP
and multicompartment
QWASI-based modelling
of Oslo Fjord (= Oslofjord
POP Model) circulated
for review.
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
Industry
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
Industry
Cranfield University Sept. 2009 Dec. 2009 Modeling ongoing
Atmospheric Degradation Study of D4 and D5 P -- ½ life in air Silicone
Industry
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
Industry
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
Industry
Dow Corning HES Lab Nov. 2009 Dec. 2009 Preliminary study nearing completion and definitive study just initiated.

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