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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
Adequacy of study:
other information
Reliability:
2 (reliable with restrictions)

Data source

Reference
Title:
No information
Author:
Langworthy, D.E., Itrich, N.R., Simonich, S.L. and Federle,|T.W. (2000). Biotransformation of the Polycyclic Musk, HHCB,|in Activated Sludge and River Water. Presented at SETAC, May|2000, Brighton, U.K.

Materials and methods

Type of study / information:
Stability in sediments (IUCLID4 Chapter 3.1.2 Stability in Water, Type = biotic)

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
IUCLID4 Test substance: other TS: undiluted material as described in Section 1.1 to 1.4

Results and discussion

Any other information on results incl. tables

RS-Freetext:
The half-lives for parent HHCB were 21 hours in activated
sludge and 33 hours in effluent in river water.

Applicant's summary and conclusion

Conclusions:
CL-Freetext:
HHCB is extensively biotransformed in activated sludge and
river water to polar metabolites that are predicted to be
less bioaccumulative and less toxic than the parent
compound. Therefore, concentrations of HHCB measured in the
environment are lower than predicted concentrations.