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Registration Dossier
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EC number: 287-477-0 | CAS number: 85535-85-9
Long-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
No adverse effects (mortaility, growth and behaviour) were observed in rainbow trout after exposure to freshwater containing Cereclor S52 at a mean measured concentration of up to 4.5 mg/l for 60 days or in bleaks exposed for 14 days to brackish water containing a C14-17 chlorinated paraffin (50% chlorinated) at 125 ug/l. No adverse effects on mortality or development of embryos and sac-fry of Japanese medaka were seen when fertilised eggs were exposed to two C14 chlorinated paraffins (48 or 55% chlorinated) for 20 days at concentrations up to 3400 µg/l.
Key value for chemical safety assessment
Additional information
No toxicity (deaths, and effects on growth or behaviour) was observed in rainbow trout after exposure to freshwater containing Cereclor S52 (a C14-17 chlorinated paraffin; 52% chlorination) at a mean measured concentration of up to 4.5 mg/l (the maximum achievable concentration) for 60 days (Madeley et al. 1983).
No adverse effects were seen on the mortality or development of embryos and sac-fry of Japanese medaka (freshwater fish) when fertilised eggs were exposed to two C14 chlorinated paraffins (48 or 55% chlorinated) for 20 days at concentrations up to 3400 µg/l (Fisk et al. 1999).
No deaths or effects on behaviour were seen in bleaks exposed for 14 days to brackish water containing a C14-17 chlorinated paraffin (50% chlorinated) at 125 ug/l (Bengtsson et al. 1979).
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