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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
toxicity to aquatic algae and cyanobacteria
Type of information:
experimental study
Adequacy of study:
key study
Study period:
72 hours - 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 201 (Alga, Growth Inhibition Test)
Deviations:
not specified
GLP compliance:
no
Remarks:
This testing was sourced outside of the EU in the USA where GLP is not necessarily required for this test.
Specific details on test material used for the study:
Assay: 10.1% [Mono] 2-(Perfluorohexyl)ethyl-Phosphate ammonium salt, 18.6% [Di] 2-(Perfluorohexyl)ethyl-Phosphate ammonium salt
Lot Number: W17033003
Expiration Date: March 29, 2018
Analytical monitoring:
no
Vehicle:
no
Details on test solutions:
Nominal test concentrations were control, 2.86, 14.3, 71.4, and 357 mg form./L, which corresponds to control, 0.800, 4.00, 20.0, and 100 mg a.i./L. Results are based on the nominal test concentrations.
Test organisms (species):
Pseudokirchneriella subcapitata (previous names: Raphidocelis subcapitata, Selenastrum capricornutum)
Details on test organisms:
UTEX 1648A; University of Texas (UTEX), Austin, Texas, USA, received October 12, 2016
Test type:
static
Water media type:
other: distilled
Total exposure duration:
72
Test temperature:
22.7 – 23.0°C
pH:
7.5
Key result
Duration:
72 h
Dose descriptor:
other: ErC50
Effect conc.:
> 100 mg/L
Nominal / measured:
nominal
Conc. based on:
act. ingr.
Basis for effect:
growth rate
Validity criteria fulfilled:
yes
Conclusions:
The 72-hour ErC50 was >357 mg formulation (> 100 mg a.i.)/L.

Description of key information

The 72-hour ErC50was >357 mg formulation (> 100 mg a.i.)/L.

Key value for chemical safety assessment

EC50 for freshwater algae:
100 mg/L

Additional information