Sodium glucoheptonate: toxicity to aquatic algae and cyanobacteria
HERO ID
4897790
Reference Type
Technical Report
Year
2013
Language
English
| HERO ID | 4897790 |
|---|---|
| Year | 2013 |
| Title | Sodium glucoheptonate: toxicity to aquatic algae and cyanobacteria |
| Authoring Organization | European Chemicals Agency |
| Publisher Text | ECHA |
| City | Helsinki, Finland |
| Abstract | Introduction: A study was performed to assess the effect of the test item on the growth of the green alga Pseudokirchneriella subcapitata. The method followed that described in the OECD Guidelines for Testing of Chemicals (2006) No 201, "Freshwater Alga and Cyanobacteria, Growth Inhibition Test" referenced as Method C.3 of Commission Regulation (EC) No 761/2009 and the US EPA Draft Ecological Effects Test Guideline OPPTS 850.5400. Methods: Following a preliminary range-finding test, Pseudokirchneriella subcapitata was exposed to an aqueous solution of the test item at concentrations of 10, 32, 100, 320 and 1000 mg active ingredient (ai)/L (three replicate flasks per concentration) for 96 hours, under constant illumination and shaking at a temperature of 24 ± 1 °C. Samples of the algal populations were removed daily and cell concentrations determined for each control and treatment group, using a Coulter Multisizer Particle Counter. Results: Exposure of Pseudokirchneriella subcapitata to the test item gave the following results: *See results chart in PDF download* Analysis of the test preparations at 0 and 96 hours showed measured test concentrations to range from 93% to 105% of nominal and so the results are based on nominal test concentrations only. A re-growth test was performed which showed the test item to be algistatic in effect. |
| Url | https://echa.europa.eu/registration-dossier/-/registered-dossier/8874/6/2/6 |
| Is Certified Translation | No |
| Dupe Override | No |
| Number Of Pages | 17 |
| Is Public | Yes |
| Language Text | English |