Registration Dossier
Registration Dossier
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EC number: 500-209-1 | CAS number: 68412-54-4 1 - 2.5 moles ethoxylated
Toxicity to terrestrial arthropods
Administrative data
Link to relevant study record(s)
Description of key information
A study was conducted to evaluate the effects of nonylphenol on survival and reproduction of Folsomia fimetaria(soil-dwelling spring tail). The effect concentrations for reproduction toxicity, EC10 and EC50, of NP in Folsomia fimetaria were determined to be 23.6 mg/kg soil dw and 65.5 mg/kg soil dw, respectively.
Key value for chemical safety assessment
- Long-term EC10, LC10 or NOEC for soil dwelling arthropods:
- 23.6 mg/kg soil dw
Additional information
A study was conducted to evaluate the effects of nonylphenol on survival and reproduction of Folsomia fimetaria(soil-dwelling spring tail). The organisms (23 -26 d old) were exposed for 21 d to different concentrations of nonylphenol, in a sandy soil. Under the test conditions, the LC10 and LC50 values for nonylphenol were determined to be 75.1 mg/kg soil dw and 151.3 mg/kg soil dw, respectively. The effect concentrations for reproduction toxicity, EC10 and EC50, for nonylphenol were determined to be 23.6 mg/kg soil dw and 65.5 mg/kg soil dw, respectively (Krogh P.H., 1996).
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