o-TOLUIDINE CAS N°: 95-53-4 - UNEP Chemicals

OECD SIDS o-TOLUIDINE
3. ENVIRONMENTAL FATE AND PATHWAYS ID: 95-53-4
DATE: 07.01.2005
82
Reliability : (2) valid with restrictions
Basic data given
Flag : Critical study for SIDS endpoint
21.06.2004 (55) (56)
Type of measurement : background concentration
Media : surface water
Concentration :
Method :
Method : - Samples taken 1997-1998
- 3 sampling sites at the Rhine km 359.3 (LfU-measuring site in Karlsruhe),
km 685.8 (ARW-measuring site in Cologne), km 732.1 (ARW-measuring
site in Duesseldorf), each 6 samples
- 1 sampling site at the Wahnbach valley reservoir, tributary to the Rhine
south of Cologne
- 2 sampling sites at the Elbe km 4.1 (Schmielka, German-Czech border, 8
samples), km 474.7 (Schnackenburg site, close to estuary, 5 samples)
- 1 sampling site at the Mulde, 7.6 km from the confluent with the Elbe in
Dessau (5 samples)
- There is also a sampling site at the Wupper (only mentioned by
Reifferscheid and Grummt 2000)
- Sampling volume 80 l in 24 h, stored and transported at 4 °C
- Several tests on genotoxicity
- Determination of about 40 aromatic amines and azo compounds
Result : - o-Toluidine was detected in the rivers Rhine and Elbe in 1997 and 1998
(Grummt 2000).
- The o-toluidine concentration varied largely from sampling to sampling
(detection limit 0.001 µg/l) in both Rhine and Elbe. o-Toluidine was
repeatedly detected at several sampling sites, including the most upstream
sampling sites (Karlsruhe on the river Rhine, Schmilka on the river Elbe)
(DVGW 2004).
- The o-toluidine concentration was below 30 ng/l in the Rhine. At the Elbe
river, Schmilka was the most polluted site with the o-toluidine concentration
occasionally at 0.1 µg/l (Reifferscheid and Grummt 2000).
Reliability : (2) valid with restrictions
Basic data given
Flag : Critical study for SIDS endpoint
20.06.2004 (57) (58) (59)
Type of measurement : concentration at contaminated site
Media : surface water
Concentration :
Method : Capillary zone electrophoresis
Remark : Chromatogramme presented only as an example that method is applicable.
As stated by the authors, result of preliminary test (presumably single data,
no replicate).
No information on interferences present in enviromental samples.
No information on sampling, e.g. type of sample, time, country, and river (if
information was correct: Since use of textile dyes releasing o-toluidine is
prohibited in the EU, this is either an outdated information or samples were
taken in India).
No check of substance identification in environmental sample by
independent, relevant method (e.g. MS).
Result : With a detection limit of 1-3 µg/l, it was reported that o-toluidine could be
present in river water downstream leather industries (probably in India).
Test condition : Limit of detection 1-3 µg/l
Reliability : (3) invalid
Documentation insufficient for assesment
07.06.2004 (60)
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