Registration Dossier

Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

Currently viewing:

Administrative data

Endpoint:
toxicity to aquatic algae and cyanobacteria
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Guideline study with acceptable restrictions

Data source

Referenceopen allclose all

Reference Type:
publication
Title:
Toxicity, biodegradability, and accumulation of a number of Cl/N-containing compounds for classification and establishing water quality criteria
Author:
Canton JH, Slooff W, Kool HJ, Struys J, Pouw TJM, Wegman RCC, Piet GJ
Year:
1985
Bibliographic source:
Regulatory Toxicology and Pharmacology 5, 123-131
Reference Type:
other: BUA Report
Title:
Unnamed
Year:
1991

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
other: OECD Proposal, 1979 (comparable to OECD 201, 1981)
GLP compliance:
not specified

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
purity: > 99.9 % (GC)

Sampling and analysis

Analytical monitoring:
yes

Test organisms

Test organisms (species):
Scenedesmus pannonicus

Study design

Test type:
static
Water media type:
freshwater
Limit test:
no
Total exposure duration:
96 h

Test conditions

Test temperature:
20 +/- 2°C

Results and discussion

Effect concentrations
Duration:
72 h
Dose descriptor:
EC50
Effect conc.:
32 mg/L
Nominal / measured:
meas. (not specified)
Conc. based on:
test mat.
Basis for effect:
growth rate
Remarks on result:
other: during exp. growth period (24-96 h)

Any other information on results incl. tables

no further informations

Applicant's summary and conclusion

Executive summary:

Canton et al. (1985).

The ErC50 (72 h) was determined in an guideline study according to OECD proposal of 1979 (comparable to OECD 201, 1981) to be 32 mg/L, based on mean measured concentrations.