Registration Dossier
Registration Dossier
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EC number: 932-389-6 | CAS number: -
Additional information on environmental fate and behaviour
Administrative data
- Endpoint:
- additional information on environmental fate and behaviour
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Study period:
- January 1981-June 1981
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 981
- Report date:
- 1981
Materials and methods
Test guideline
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- The mobility of 14C-cyclopropane labelled cyhalothrin was determined by soil thick-layer descending chromatography using three soils; 'Gore Hill' (clay loam, 13.9% organic matter [O.M.]), '18 Acres' (sandy loam, 5.2% O.M) and 'Frensham' (loamy sand, 2.2% O.M.). Treatments of approximately 100μg cyhalothrin/g moist soil (equivalent to 10kg a.i./ha) were applied to 30cm long plates and eluted with 32cm 'rain'.
- GLP compliance:
- no
Test material
- Reference substance name:
- Reaction mass of (R)-cyano(3-phenoxyphenyl)methyl rel-(1R,3R)-3-((1Z)-2-chloro-3,3,3-trifluoroprop-1-en-1-yl)-2,2-dimethylcyclopropanecarboxylate and (R)-cyano(3-phenoxyphenyl)methyl rel-(1S,3S)-3-((1Z)-2-chloro-3,3,3-trifluoroprop-1-en-1-yl)-2,2-dimethylcyclopropanecarboxylate
- EC Number:
- 932-389-6
- Molecular formula:
- C23H19ClF3NO3
- IUPAC Name:
- Reaction mass of (R)-cyano(3-phenoxyphenyl)methyl rel-(1R,3R)-3-((1Z)-2-chloro-3,3,3-trifluoroprop-1-en-1-yl)-2,2-dimethylcyclopropanecarboxylate and (R)-cyano(3-phenoxyphenyl)methyl rel-(1S,3S)-3-((1Z)-2-chloro-3,3,3-trifluoroprop-1-en-1-yl)-2,2-dimethylcyclopropanecarboxylate
Constituent 1
Results and discussion
Applicant's summary and conclusion
- Conclusions:
- The study is considered to be reliable with restrictions.
- Executive summary:
Peak radiochemical leaching (peak concentration) distance for cyhalothrin in all three soils was 1em or less. The concentration of cyhalothrin equivalents in the leachate was below the limit of determination <0.02 μg/ml).
Under the same conditions the peak leaching distance of a pesticide of moderate mobility, was approximately 6cm in the clay loam and between 10 and 11cm in the sandy loam and loamy sand.
It is concluded that cyhalothrin has a low mobility in soil.
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