Registration Dossier

Administrative data

Endpoint:
biotransformation and kinetics
Type of information:
experimental study
Adequacy of study:
disregarded due to major methodological deficiencies
Study period:
30 days
Reliability:
3 (not reliable)
Rationale for reliability incl. deficiencies:
other: no study report available, only summary descripiton in form of a letter

Data source

Reference
Reference Type:
other company data
Title:
Unnamed
Year:
1971
Report Date:
1971

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
Dechlorane Plus was suspended in benzene and then added to test water at a concentration of 4 ppm. Domestic sewage sludge was added, and the mixtures were incubated for 2 - 30 days. The oxygen concentration was determined and compared with negative control values.
GLP compliance:
no
Type of medium:
aquatic

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
not specified
Details on test material:
Dechlorane Plus was suspended in benzene, then added to water, while benzene was stripped by aeration.

Results and discussion

Transformation products:
not measured

Any other information on results incl. tables

No oxygen consumption in test and control cultures, sludge was viable after the 30 days incubation period with Dechlorane Plus indicating not toxicity to sludge. No analytical verification of tested substance concentration.

Applicant's summary and conclusion

Conclusions:
Test result is not reliable, as not study report is available.
Executive summary:

Dechlorane Plus was suspended in benzene and added to water together with domestic sewage sludge, while benzene was stripped by aeration. The nominal concentration of 4 ppm was not analytically verified. Within the test duration of 30 days, no oxygen consumption was observed in test and negative control cultures. No test report is availabe, only a summary description in letter form. The test results are not reliable.