Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.017 mg/L
Assessment factor:
1 000
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
0.165 mg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.002 mg/L
Assessment factor:
10 000
Extrapolation method:
assessment factor
PNEC marine water (intermittent releases):
0.017 mg/L

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
138.1 mg/L
Assessment factor:
1
Extrapolation method:
assessment factor

Sediment (freshwater)

Hazard assessment conclusion:
PNEC sediment (freshwater)
PNEC value:
2.62 mg/kg sediment dw
Extrapolation method:
equilibrium partitioning method

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.262 mg/kg sediment dw
Extrapolation method:
equilibrium partitioning method

Hazard for air

Air

Hazard assessment conclusion:
no hazard identified

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
PNEC soil
PNEC value:
0.512 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Conclusion on classification

There are no any experimental data for the target the reaction product of 2,4-Dinitrotoluene and 2,6-Dinitrotoluene and hydrogen, deaminated (MCHAmix, EC 943-517-5) available. In order to evaluate the toxicity of the test substance to aquatic organisms read-across approach to two structurally similar chemicals were applied: 2-Methylcyclohexylamine (CAS 7003-32-9) and 2,6-Dimethylcyclohexylamine (CAS 6850-63-1). The most sensitive trophic level is aquatic invertebrates with a 48 -h EC50 of 16.5 mg/L. Chronic toxicity data are only available for one trophic level from read-across to the similar chemical 2,6-Dimethylcyclohexylamine (CAS 6850-63-1; algae 72-h ErC10 = 24.5 mg/L).

Official classification regarding environmental hazards:

Aquatic compartment

In accordance with Regulation (EC) No 1272/2008 Annex VI Table 3.1 or Table 3.2: no data found for MCHAmix (EC 943-517-5).

Self-classification regarding environmental hazards:

Aquatic compartment

Following GHS, the substance is not to be classified as acutely hazardous to the aquatic environment. Based on the available acute and chronic data, the substance is not to be classified as chronically hazardous to the aquatic environment.

Following GHS, the substance is not to be classified as acutely hazardous to the aqueous environment.

Rationale:

The substance is not to be classified as acutely hazardous to the aquatic environment, since the lowest acute effect value is > 1 mg/L.

Following GHS, the substance is not to be classified as chronically hazardous to the aqueous environment.

- Long-term toxicity data: The substance is rapidly degradable, the log Kow is < 4, and the available chronic effect value (EC10/NOEC) is greater than 1 mg/L. According to the criteria outlined in Table 4.1.0(b) (ii) (Commission Regulation (EU) No 286/2011 amending Regulation (EC) No 1272/2008) the substance is not to be classified as chronically hazardous to the aquatic environment.

- Acute toxicity data: Fish and aquatic invertebrates are the trophic levels not covered by chronic data. Therefore, classification is also assessed based on the respective acute effect data. The E(L)C50 values are > 10 and <= 100 mg/L; however, the substance is rapdily degradable, and the log Pow is < 4. According to the criteria outlined in Table 4.1.0(b) (iii) (Commission Regulation (EU) No 286/2011 amending Regulation (EC) No 1272/2008) the substance is not to be classified as chronically hazardous to the aquatic environment.