Registration Dossier
Registration Dossier
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EC number: 930-936-3 | CAS number: -
Toxicity to terrestrial plants
Administrative data
Link to relevant study record(s)
Description of key information
Key value for CSA for toxicity to terrestrial plants:
NOEC > 1018 to 1069 mg/kg soil dw in wheat, mung bean and Chinese cabbage - emergence endpoint (OECD 208 TG)
NOEC > 1069 mg/kg soil dw in wheat - growth endpoint (OECD 208 TG)
EC50 > 1018 to 1050 mg/kg soil dw in mung bean and Chinese cabbage - growth endpoint (OECD 208 TG)
Key value for chemical safety assessment
Additional information
The toxicity of the study substance as measured by effects on emergence or growth to wheat, mung bean and Chinese cabbage was evaluated in a 14-day study using artificial soil. Results indicated that the study substance had no observed effect on emergence and growth in wheat plants [i.e., NOEC (14-day) > 1069 mg/kg soil dw]. In mung beans, no effect was observed in emergence [NOEC (14-day) > 1050 mg/kg soil dw] but there was a 14% reduction seen in growth weight (EC50 > 1050 mg/kg dw). Similarly in Chinese cabbage, no effect was seen for seed emergence [i.e., NOEC (14-day) > 1018 mg/kg] but a reduction (40%) in growth weight (EC50 > 1018 mg/kg). The observed effects may be due to potential "physical' or smothering effects caused by the study substance's oily characteristics (being a lubricant hydrocarbon material); this needs to be investigated further. Also it is possible that the soil was not be allowed to equilibrated or aged sufficiently to minimize or rule out such potential physical effects on plant growth. Collectively, these findings indicate that the study substance is not acutely toxic and poses a low hazard to terrestrial plants.
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