Registration Dossier
Registration Dossier
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EC number: 278-636-5 | CAS number: 77182-82-2
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
not readily biodegradable (max. 7.2% after 45 d) (OECD 301B)
Key value for chemical safety assessment
- Biodegradation in water:
- under test conditions no biodegradation observed
Additional information
The ready biodegradability of glufosinate-ammonium was investigated experimentally (Voelskow, 1995; M-166505-02-2) in activated sludge at two test concentrations of 0.1 or 1 mg a. s. /L, following application of 3,4-14C-labelled active substance and incubation at 22 °C under the conditions of a carbon dioxide evolution test (Sturm test) for a maximum of 28 days. The study was conducted according to GLP and OCED guideline 301B.
The evaluation revealed that glufosinate-ammonium can be regarded as not readily biodegradable under the conditions of the test, with maximum biodegradation rates of 7.22% and 1.19% CO2evolution at rates of 0.1 and 1.0 mg test item/L, respectively.
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