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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:
other information
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: only secondary literature; original reference not available

Data source

Referenceopen allclose all

Reference Type:
secondary source
Title:
Chlorobenzenes other than hexachlorobenzene
Author:
IPCS-INCHEM
Year:
1991
Bibliographic source:
in: ENVIRONMENTAL HEALTH CRITERIA 128
Reference Type:
publication
Title:
Behaviour and fate of chlorobenzenes (CBs) introduced into soil¿plant systems by sewage sludge application: A review
Author:
Wang MJ and KC Jones
Year:
1994
Bibliographic source:
Chemosphere, 28(7):1325¿1360

Materials and methods

Principles of method if other than guideline:
other: IPCS-EHC report
GLP compliance:
not specified

Test material

Reference
Name:
Unnamed
Type:
Constituent

Results and discussion

Any other information on results incl. tables

The majority of chlorobenzenes added to soil, as either sewage sludge or spiked samples, were volatilized, with biodegradation and abiotic degradation insignificant compared with the amount volatilized. Volatilization occurred by two-step first-order processes, with high rates of volatilization during an initial step, followed by a second, much slower step, which was presumably controlled by the rate of desorption of the compound from soil. Half-lives for loss of chlorobenzenes ranged from 13.0 to 219 days for sewage sludge applications and from 10.6 to 103 days for spiked samples. Half-lives increased with increasing chlorination and were also higher in sludge-amended soil than in the spiked samples.

Applicant's summary and conclusion