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EC number: 287-476-5
CAS number: 85535-84-8
According to an expert review, Rainbow trout
(Onchorynchus mykiss) were exposed to a C10-12 chlorinated paraffin (58%
chlorinated) in a flow-through system at 10oC for up to 20
days. Although not clear from the report, it appears concentrations of
between 0.04 and 100 mg/L were used. A
LC50 of more than 100 mg/L after 24 days was noted. Various sub-lethal
effects were reported resulting in a progressive loss of motor function
and immobilisation, beginning within 15 to 20 days of the start of
exposure. When death occured it resulted from debilitation, cessation of
feeding and other secondary effects. The NOEC for the C10-12 chlorinated
paraffin was less than 0.04 mg/L in this study.
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