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Registration Dossier
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EC number: 205-491-7 | CAS number: 141-62-8
Monitoring data
Administrative data
- Endpoint:
- monitoring data
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Study period:
- 2013
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: The study was well documented and meets generally accepted scientific principles, but was not conducted in compliance with GLP.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 015
- Report date:
- 2015
Materials and methods
Test material
- Reference substance name:
- Decamethyltetrasiloxane
- EC Number:
- 205-491-7
- EC Name:
- Decamethyltetrasiloxane
- Cas Number:
- 141-62-8
- Molecular formula:
- C10H30O3Si4
- IUPAC Name:
- 2,2,4,4,6,6,8,8-octamethyl-3,5,7-trioxa-2,4,6,8-tetrasilanonane
Constituent 1
Study design
- Details on sampling:
- - Geographic coordinates: Lake Ontario
- Known emission sources near sampling site: Lake Ontario is the furthest downstream lake in the chain of Laurentian Great Lakes; it is impacted by human activities occurring throughout the basin of Lakes Superior, Michigan, Huron and Erie.
- Period of sampling: 2013-08-26 to 2012-11-21
- Sampling: Surface sediments were collected from 5 locations (two within Lake Ontario and three within Hamilton Harbor) using a stainless steel box corer. Round goby (Neogobius melanostomus), rainbow smelt (Osmerus mordax), alewife (Alosa pseudoharengus), and mysid shrimp (Mysis relicta) were collected using a bottom trawl. Lake trout (Salvelinus namaycush) were collected using gill nets
- Sample storage before analysis: Sediment samples were stored at 4°C in the dark. Biota samples were stored at approximately -20ºC in the dark
- Other: Personnel were prohibited from using personal care products known to contain siloxane materials on days of sample collection.
Results and discussion
Concentration
- Country:
- Canada
- Location:
- Lake Ontario
- Substance or metabolite:
- substance
- Remarks on result:
- other: Measured concentrations of MD2M were below the method detection limit in all sampled matrices.
Applicant's summary and conclusion
- Conclusions:
- Measured concentrations of MD2M were below the method detection limit in all sampled matrices.
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