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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Administrative data

Endpoint:
toxicity to aquatic algae and cyanobacteria
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
other: Body responsible for the test
Title:
Unnamed
Year:
2000

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
other: 92/69/EWG, C.3; OECD 201
GLP compliance:
yes

Test material

Reference
Name:
Unnamed
Type:
Constituent

Test solutions

Details on test solutions:
Identity and concentration of auxillary solvent for dispersal:
NH4Cl 15
KH2PO4 1.6
CaCL2(H2O)2 18
MgSO4(H2O)7 15
MgCl2(H2O)6 12
FeCl3(H2O)6 0.08
Na2EDTA(H2O)2 0.1

Spurenelemente:

H3BO3 0.185
ZnCl2 0.0063
MnCl2(H2O)6 0.415
CoCl2(H2O)6 0.0015
CuCl2(H2O)2 0.000015
Na2MoO4(H2O)2 0.007
NaHCO3 150

Test organisms

Test organisms (species):
Pseudokirchneriella subcapitata (previous names: Raphidocelis subcapitata, Selenastrum capricornutum)

Study design

Limit test:
no
Total exposure duration:
72 h

Test conditions

Hardness:
CA 24.2 mg CaCO3/L

Results and discussion

Effect concentrationsopen allclose all
Duration:
72 h
Dose descriptor:
EC50
Effect conc.:
0.495 mg/L
Basis for effect:
biomass
Duration:
72 h
Dose descriptor:
EC50
Effect conc.:
0.495 mg/L
Basis for effect:
growth rate
Duration:
72 h
Dose descriptor:
NOEC
Effect conc.:
>= 0.495 mg/L
Basis for effect:
growth rate
Duration:
72 h
Dose descriptor:
NOEC
Effect conc.:
>= 0.495 mg/L
Basis for effect:
biomass

Applicant's summary and conclusion