Registration Dossier
Registration Dossier
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EC number: 942-582-7 | CAS number: -
Sediment toxicity
Administrative data
Link to relevant study record(s)
Description of key information
Sodium sulfate is not toxic to sediment dwelling animals, the lowest LC50 found for Hyalella azteca is 757 mg/l.
Key value for chemical safety assessment
Additional information
Five publications on sediment toxicity of sodium sulfate were considered valid with restrictions. The lowest LC50 was found for Tricorythus sp., which was an experiment performed in river water (Goetsch and Palmer, 1997). The test species is a local organism from the southern part of Africa and Southeast Asia and is not a standard test species. Therefore this species was not considered representative for Europe and the study was indicated as supporting study only.
The other publications were performed with common species of sediment, by Soucek and Kennedy (2005) with Hyalella azteca and Chironomus tentans, Davies and Hall (2007) and Soucek (2007) with Hyalella azteca. All these tests were performed according to standard guidelines and had chemical monitoring. None of them were performed under GLP. Soucek and Kennedy (2005) study is considered as the key study, since it shows the lowest result with a 96h-LC50 = 757 mg/l for Hyalella azteca exposed to sodium sulfate in low hardness conditions.
Sodium sulfate is not toxic to sediment dwelling animals.
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