Potassium sodium 4,4'-bis[6-anilino-4-[bis(2-hydroxyethyl)amino]-1,3,5-triazin-2-yl]amino]stilbene-2,2'-disulphonate

Monitoring data

Administrative data

Endpoint:

monitoring data

Type of information:

migrated information: read-across based on grouping of substances (category approach)

Adequacy of study:

weight of evidence

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: see 'Remark'

Remarks:

Test procedures cannot be subsumed under a testing guideline, nevertheless are well documented and scientifically acceptable. Justification for Read Across is reported in the endpoint summary and in the Category Justification Report attached to the Section 13 of this dossier.

Data source

Reference

Reference Type:

publication

Title:

Monitoring of FWA in Sewage Treatment Plants and Rivers.

Author:

Hochberg R., Kaschig J., Richner P., Zeller M.

Year:

1997

Bibliographic source:

Presented at the International Symposium of Environmental Biotechnology 1997.

Materials and methods

GLP compliance:

yes

Type of measurement:

background concentration

Media:

other: river water

Test material

Test material information

Constituent 1

Reference substance name:

Disodium 4,4'-bis[(4-anilino-6-morpholino-1,3,5-triazin-2-yl)amino]stilbene-2,2'-disulphonate

EC Number:

240-245-2

EC Name:

Disodium 4,4'-bis[(4-anilino-6-morpholino-1,3,5-triazin-2-yl)amino]stilbene-2,2'-disulphonate

Cas Number:

16090-02-1

Molecular formula:

C40H38N12Na2O8S2

IUPAC Name:

disodium 2,2'-ethene-1,2-diylbis{5-[(4-anilino-6-morpholin-4-yl-1,3,5-triazin-2-yl)amino]benzenesulfonate}

Study design

Details on sampling:

- Geographic locations: Germany. Rivers: Isar, Wupper, Leine, Chemnitz, Teltow-kanal.
- Samples: to avoid masking of the STP-impact by high dilution, relatively small rivers and STPs with a high catchment area were chosen. One of the STPs (Chemnitz) has no biological treatment.
- Period of sampling: the sampling took place between August and Oktober 1993. The samples at the rivers and the STP outflows were taken over a period of 7 days and stabilized by for-malin. Inflow samples were taken on 2 days.
- Sampling: STPs and river's water. In rivers, the samples were collected by regional authorities in the framework of a Tenside-Monitoring study which was coordinated by the TEGEWA.

Results and discussion

Concentration

Concentration 1

Country:

Germany

Location:

Isar, Wupper, Leine, Chemnitz, Teltow Kanal.

Substance or metabolite:

substance

Conc.:

> 115 - < 556 other: ng/l

Remarks on result:

other: Concentrations range above STPs.

Concentration 2

Country:

Germany

Location:

Isar, Wupper, Leine, Chemnitz, Teltow Kanal.

Substance or metabolite:

substance

Conc.:

> 162 - 1 083 other: ng/l

Remarks on result:

other: Concentrations range below STPs.

Details on results:

The comparison of inflow and outflow demonstrated the elimination of test item by sludge absorption.
PEC/PNEC estimated: 0.002-0.048. The PEC/PNEC ratio does not suggest risk to the aquatic environment.

Any other information on results incl. tables

The concentrations at the different STPs can be compared by per capita mass flows.

Concentrations [ng/L] above STPs

	Isar	Wupper	Leine	Chemnitz	Teltow Kanal
Conc, mean	115	121	126	544	556
s (n = 7)	27	72	58	413	431

Concentrations [μg/L] in STP-inflow and outflow

	München II (Isar)	Buchenhofen (Wupper)	Herrenhausen (Leine)	Heinersdorf (Chemnitz)	Stahnsdorf (Teltow-Kanal)
Inflow, mean	8.2	5.9	na	na	9.7
s (n=2)	0.8	0.9			1.2
Outflow, mean	1.3	3.2	3.3	3.3	5.1
s (n=5)	0.6	1.3	0.9	0.5	1.9

Concentrations [ng/L] below STPs

	Isar	Wupper	Leine		Chemnitz		Stahnsdorf (Teltow-Kanal)
sampling point	A	A	A	B	A	B	A	B
Conc, mean	162	323	204	238	618	1083	503	403
s (n=7)	111	231	127	92	414	767	292	340

Applicant's summary and conclusion

Conclusions:

The comparison of inflow and outflow demonstrated the elimination of test item by sludge absorption.
The PEC/PNEC ratio does not suggest risk to the aquatic environment.

Executive summary:

Method

As a basis for an aquatic risk assessment of the remaining FWAs a monitoring program was launched to actualize data about environmental concentrations of the most important FWAs (including test substance). The sampling took place at five representative STPs in Germany. The five rivers monitored should give a representative cross-section regarding the geological background and the flow rate. Because of the extremely low predicted concentrations in environmental compartments, especially in surface waters, an analytical method has been developed allowing a reliable, quantitative determination down to 2 ng/L. The sampling concurrently took place with sampling in the framework of a tenside monitoring program in Germany.

Results

The comparison of inflow and outflow demonstrated the elimination of test item by sludge absorption.

PEC/PNEC estimated: 0.002-0.048. The PEC/PNEC ratio does not suggest risk to the aquatic environment.