Registration Dossier

Ecotoxicological information

Short-term toxicity to aquatic invertebrates

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

A study was performed to assess the acute toxicity of Salicynalva to Daphnia magna. The study was conducted in accordance with the OECD Guideline for Testing of Chemicals No. 202, Part I "Daphnia sp., Acute Immobilisation Test". The 48h EC50 was 1.6 mg/l. 

Key value for chemical safety assessment

EC50/LC50 for freshwater invertebrates:
1.6 mg/L

Additional information

A study was performed to assess the acute toxicity of Salicynalva to Daphnia magna. 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 2 "Acute toxicity for Daphnia" and the OECD Guideline for Testing of Chemicals No. 202. Groups of twenty, first instar Daphnia (less than 24 hours old) were exposed for 48 hours to seven concentrations of Salicynalva dissolved in Elendt M7 medium. The incidence of immobilisation was recorded for each test and control group at 24 hours and at 48 hours are presented in the table below. All results are expressed in terms of mean measured concentration. Measured concentrations ranged from 98 - 127% of nominal at 0 hours and 86 - 121% of nominal at 48 hours.

Time (h)

EC50

 (mg Salicynalva/L)

95% confidence limits

 (mg Salicynalva/L)

24

2.7

2.3 – 3.1

48

1.6

1.3 – 1.9