1,2-dichlorobenzene

Field studies

Administrative data

Endpoint:

field studies

Type of information:

other: Applicant's summary entry of further references

Adequacy of study:

other information

Reliability:

other: Applicant's summary entry of further references

Rationale for reliability incl. deficiencies:

other: Applicant's summary entry of further references

Data source

Reference

Reference 1

Reference Type:

review article or handbook

Title:

SIDS Initial Assessment Report For SIAM 13 (Bern, 6 - 9 November 2001) - 1,2-Dichlorobenzene

Author:

OECD

Year:

2001

Bibliographic source:

UNEP Publications

Reference 2

Reference Type:

publication

Title:

Chlorobenzenes in field soil with a history of multiple sewage sludge applications

Author:

Wang M, McGrath S, Jones K

Year:

1995

Bibliographic source:

Environmental Science and Technology, 29(2): 356- 362

Materials and methods

Principles of method if other than guideline:

Applicant's summary entry of further references; endpoint study record was created to contribute to the overall results.

GLP compliance:

not specified

Test material

Test material information

Constituent 1

Reference substance name:

1,2-dichlorobenzene

EC Number:

202-425-9

EC Name:

1,2-dichlorobenzene

Cas Number:

95-50-1

Molecular formula:

C6H4Cl2

IUPAC Name:

1,2-dichlorobenzene

Results and discussion

Any other information on results incl. tables

Applicant's summary entry of further references; endpoint study record was created to contribute to the overall results:

In this summary entry, a further publication on the degradation of o-dichlorobenzene in field soil is summarized. The reliability of this publication was not assignable because references were only cited as secondary literature.

In a study of 8 archived samples of sewage sludge amended soil collected between 1942 and 1991, Wang et al (1995) compared them to soil from a control plot that had never been treated with either sewage sludge or other organic manures. It was found that the level of chlorobenzene compounds (including 1,2-dichlorobenzene) in the sludge amended samples was elevated over those of the control. The range of 1,2-dichlorobenzene applied in the sewage sludge was not detected to 126 µg/kg, however during the 50 years the residue of 1,2-dichlorobenzene was found to be the lowest of the dichlorobenzene compounds at 6-9%. This result supports the relatively rapid elimination of 1,2-dichlorobenzene from soils. Volatilisation was identified by microcosm as the main mechanism of loss.

Applicant's summary and conclusion

Executive summary:

In this summary entry, a further publication on the degradation of o-dichlorobenzene in field soil is summarized. The reliability of this publication was not assignable because references were only cited as secondary literature.

In a study of 8 archived samples of sewage sludge amended soil collected between 1942 and 1991, Wang et al (1995) compared them to soil from a control plot that had never been treated with either sewage sludge or other organic manures. It was found that the level of chlorobenzene compounds (including 1,2-dichlorobenzene) in the sludge amended samples was elevated over those of the control. The range of 1,2-dichlorobenzene applied in the sewage sludge was not detected to 126 µg/kg, however during the 50 years the residue of 1,2-dichlorobenzene was found to be the lowest of the dichlorobenzene compounds at 6-9%. This result supports the relatively rapid elimination of 1,2-dichlorobenzene from soils. Volatilisation was identified by microcosm as the main mechanism of loss.