Registration Dossier
Registration Dossier
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EC number: 231-569-5 | CAS number: 7637-07-2
Long-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 10 mg/L
Additional information
Hooftman et al (2000a) report a NOEC for growth and reproduction of 10 mg-B/L in the only study that fully complied with standard guidelines. Other values (14 to 21 day tests) for Daphnia magna growth and reproduction range from 6 to 27 mg-B/L.
Maier and Knight (1981) report a chronic NOEC for Chironomus decorus of 10 mg-B/L in a 4 -day test of the 4th instar stage.
Older studies report NOEC values for emergence of mosquito species range from 4.4 to 18 mg-B/L (Fay, 1959), although these studies are probably too old to be used in derivation of a PNEC or SSD.
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