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Environmental fate & pathways

Monitoring data

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Administrative data

Endpoint:
monitoring data
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Acceptable, well documented publication which meets basic scientific principles

Data source

Referenceopen allclose all

Reference Type:
publication
Title:
Aromatic amines in surface waters of the Netherlands
Author:
Wegman R and De Korte G
Year:
1981
Bibliographic source:
Water Res. 15, 391-394
Reference Type:
secondary source
Title:
o-TOLUIDINE CAS No: 95-53-4 SIDS Initial Assessment Report.
Author:
OECD
Year:
2005
Bibliographic source:
UNEP Publications

Materials and methods

Principles of method if other than guideline:
GC, photometry
GLP compliance:
not specified
Type of measurement:
background concentration
Media:
surface water

Test material

Constituent 1
Chemical structure
Reference substance name:
o-toluidine
EC Number:
202-429-0
EC Name:
o-toluidine
Cas Number:
95-53-4
Molecular formula:
C7H9N
IUPAC Name:
o-toluidine
Details on test material:
- Name of test material (as cited in study report): 2-Methylaniline
-Purity: not applicable (concentration in tributaries of the River Rhine was measured as part of the study)

Study design

Details on sampling:
In 1979, 92 surface water samples were taken at 5 sampling sites of the river Rhine and tributaries.
The samples were collected by means of a "grab sample".

Results and discussion

Concentrationopen allclose all
Country:
Netherlands (the)
Location:
Rhine (Lobith)
Substance or metabolite:
substance
Remarks:
o-toluidine
Conc.:
0.03 µg/L
Remarks on result:
other: weekly sampling; 46 samples; Freq TS: 6
Country:
Netherlands (the)
Location:
Boven Merwede (Rhine tributary)
Substance or metabolite:
substance
Remarks:
o-toluidine
Conc.:
0.07 µg/L
Remarks on result:
other: monthly sampling; 12 samples; Freq TS: 8
Country:
Netherlands (the)
Location:
Ijssel (Rhine tributary)
Substance or metabolite:
substance
Remarks:
o-toluidine
Conc.:
0.2 µg/L
Remarks on result:
other: monthly sampling; 13 samples; Freq TS: 8

Any other information on results incl. tables

In 46 water samples (containing sediments) of the river Rhine from Lobith, the mean o-toluidine concentration was 0.03 µg/l (3 samples above the determination limit of 0.02 µg/l, maximum 1.8 µg/l). In its tributaries Boven Merwede and Issel the mean o-toluidine concentration was 0.07 µg/l (1 sample of 12 above detection limit: 0.8 µg/l) and 0.2 µg/l (1 sample of 13 above detection limit: 2.4 µg/l), respectively.

Applicant's summary and conclusion