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)
| 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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