Registration Dossier

Ecotoxicological information

Endpoint summary

Administrative data

Description of key information

Additional information

Aquatic

A standard acute toxicity study with Daphnia was conducted and resulted in a 48 hour EL50 of 41 mg/L loading rate WAF, and a NOEC of 32 mg/L loading rate WAF. A standard acute toxicity study with fish was conducted with FeMn slag as a limit test at 100 mg/L loading rate WAF and showed no effects. Therefore the 96 Hour LL50 was greater than 100 mg/L loading rate WAF and the NOEC was 100 mg/L loading rate WAF. A standard study on algae resulted in 72hr ErL50 90 mg/L loading rate WAF, EyL50 = 39 mg/L loading rate WAF, NOEC = 10 mg/L loading rate WAF, whilst an 8 day chronic study on daphnia gave NOEC = 3.2 mg/L loading rate WAF.

STP

No effects on sewage sludge were observed in a standard 3 hour study on FeMn Slag. Hence the NOEC for FeMn slag is 1000 mg/L.