Registration Dossier

Administrative data

Endpoint:
field studies
Type of information:
experimental study
Adequacy of study:
disregarded due to major methodological deficiencies
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Study well documented, meets generally accepted scientific principles, acceptable for assessment

Data source

Reference
Reference Type:
publication
Title:
Fate of organic compounds in land application of contaminated municipal sludge.
Author:
DEMIRJIAN YA, JOSHI AM, WESTMAN TR
Year:
1987
Bibliographic source:
J. Water Pollut. Control Fed, 59, p : 32-38.

Materials and methods

Principles of method if other than guideline:
no data
GLP compliance:
not specified
Type of measurement:
Soil contamination via sludge from STP
Media:
Soil

Test material

Constituent 1
Reference substance name:
sludge and soil
IUPAC Name:
sludge and soil
Details on test material:
no data

Results and discussion

Any other information on results incl. tables

*Mobility of vanillin in soil:
Vanillin concentration (µg/kg) in the soil with time at sludge  application rate of 448 144 kg/ha containing 1130 µg of vanillin per kg  of sludge:

Background     Vanillin concentration (µg/kg)
0-15.2cm                  0
22.9-38.1cm             0

5 days
0-15.2cm                  876
22.9-38.1cm             0

122 days
0-15.2cm                  945
22.9-38.1cm             0

241 days
0-15.2cm                  822
22.9-38.1cm             0

*No comments or conclusions are given by the authors for these results

Mobility of vanillin in crop:
In the control plots, among root and stalk, only the lower stalk  contained 5.3 mg/kg vanillin. Root samples from the 448 144kg/ha plots  

contained 3.6 mg/kg vanillin; lower stalks contained 2 mg/kg and upper  stalk did not contain any detectable compounds. Vanillin detection both  

in control and samples indicates natural production.

Applicant's summary and conclusion