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Ecotoxicological information

Short-term toxicity to fish

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Description of key information

A study was performed to assess the acute toxicity of Salicynalva to rainbow trout (Oncorhynchus mykiss) under semi-static conditions. The study was conducted in accordance with OECD Guideline for Testing of Chemicals No. 203 "Fish, Acute Toxicity Test".  The 96h acute toxicity to fish is 2.2 mg/l based on measured concentrations. 

Key value for chemical safety assessment

LC50 for freshwater fish:
2.2 mg/L

Additional information

A study was performed to assess the acute toxicity of Salicynalva to rainbow trout (Oncorhynchus mykiss) under semi-static conditions. The study was conducted in accordance with EEC Methods for Determination of Ecotoxicity Annex to Directive 92/69/EEC (O.J. No. L383A, 29. 12.92) Part C, Method 1 "Acute toxicity for fish" and the OECD Guideline for Testing of Chemicals No. 203 "Fish, Acute Toxicity Test". Groups of ten juvenile fish were exposed to a range of concentrations of Salicynalva dissolved in water. Observations were made on the numbers of dead fish and the incidence of sub-lethal effects after 3, 6, 24, 48, 72 and 96 hours exposure are presented in the table below. All results are expressed in terms of mean measured concentration. Measured concentrations ranged from 76 to 102% of nominal in freshly prepared solutions and from 51 to 81% of nominal in 24 hour old expired solutions.

Time (h)

LC50

 (mg Salicynalva/L)

95% confidence limits

(mg Salicynalva/L)

3

>10

-

6

>10

-

24

4.3

3.2 – 5.8

48

3.1

2.3 – 4.0

72

2.2

1.5 – 3.2

96

2.2

1.5 – 3.2