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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Administrative data

Link to relevant study record(s)

Description of key information

EC50 48 hour (Daphnia magna immobilisatoin) = 1900 mg/l 

Key value for chemical safety assessment

Fresh water invertebrates

Fresh water invertebrates
Effect concentration:
1 900 mg/L

Additional information

Results from testing of acute toxicity to invertebrates of sodium chloride have been identified from a series of published studies. Preference has been given to studies following or similar to internationally accepted guidelines. Studies on acute toxicity to Daphnia magna with exposure duration of 24 (old guideline) and 48 hours have been summarised. With the exception of one study, the EC50 values for immobility are > 3000 mg/L. The EC50 for invertebrates was derived as geometric mean of the two studies with 48 hr exposure:

EC50 (Daphnia magna, 48 hr)= (874*4135)^(1/2) = 1900 mg/L

This value is well supported by the results from the 24 hr exposure testing.