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Environmental fate & pathways

Additional information on environmental fate and behaviour

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Administrative data

Endpoint:
additional information on environmental fate and behaviour
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Tests done according to standard protocol. Good quality and considered useful for assessing the transformation/dissolution of the substance according to OECD.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2010
Report Date:
2010

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
other: OECD Environmental Health and Safety Publications. Series on Testing and Assessment No. 29. Guidance Document on Transformation/Dissolution of Metals and Metal Compounds in Aqueous Media. July 2001.
GLP compliance:
not specified

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
purity 99.999%

Results and discussion

Any other information on results incl. tables

Cadmium concentration in solution after 7 days at 1mg/l loading was 2.71 µg/l, coefficient of variation: 15%

Cadmium concentration in solution after 28 days at 1mg/l loading was 5.75 µg/l, coefficient of variation: 12%

Applicant's summary and conclusion

Conclusions:
Tests of good quality and considered useful for assessing the effect on the endpoint
Executive summary:

Cadmium sulfide powder was introduced at 1 mg/L in a CO2-buffered aqueous medium at pH 6 (used as worst case for all pH values).

Transformation/dissolution was accomplished by standardised agitation, sampling and analysing

of the solutions at specific time intervals. The short-term (acute) transformation/dissolution was 2.71 (15% CV)

after a 7 days transformation/dissolution period. The long-term (chronic) transformation/dissolution was 5.75 µg Cd/l (CV:1after a 28 days transformation/dissolution period.%).