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Ecotoxicological Summary

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Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.005 mg/L
Assessment factor:
50
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
0.012 mg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0 mg/L
Assessment factor:
500
Extrapolation method:
assessment factor

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
10 mg/L
Assessment factor:
10
Extrapolation method:
assessment factor

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.354 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:
0.702 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
PNEC oral
PNEC value:
5.33 mg/kg food
Assessment factor:
300

Additional information

Conclusion on classification

Results for C16MES - short term:                                   Results for C18MES - short term:

Fish: LC50 = 1.5 mg/L                                                    Fish: LC50 = 0.44 mg/L

Daphnia EC50 = 1.24 mg/L                                            Daphnia EC50 = 0.252 mg/L - 0.373 mg/L

Algae EC50 > 10 mg/L and NOEC >= 10                      Algae EC50 > 0.8 mg/L and NOEC >= 0.8 mg/L

Results for C16MES - long term:                                    Results for C18MES - long term

Daphnia NOEC = 0.24 mg/L                                          Daphnia NOEC = 0.23 mg/L

Acute toxicity

The substance C16MES has acute aquatic toxicity above 1 mg/L. This means that this substance is not falling into any category for acute aquatic hazard.

The substance C18MES has acute aquatic toxicity below 1 mg/L. This means that this substance has to be classified into the category 1 of Acute aquatic hazard according to CLP.

The reaction mass of C16MES and C18MES:

For the legal entity composition, the reaction mass of the two substances contains less than 25% C18MES. Based on the CLP classification of mixtures, the reaction mass does not require a label for Acute Toxicity Category 1.

For the Boundary composition, the reaction mass of the two substances contains less than 40% C18MES. Based on the CLP classification of mixtures, the reaction mass might need a label for Acute Toxicity Category 1 if the reaction mass contains > 25% C18MES.

Long-term hazard

Based on the results of the long-term Daphnia for C16MES (0.24 mg/L) and C18MES (0.23 mg/L), both components need to be classified as Category Chronic 3 according to the second ATP amendment to the CLP Regulation.

Therefore, also the reaction mass of the two components needs to be classified for long-term aquatic hazard as Chronic 3 with hazard statement: H412: Harmful to aquatic life with long lasting effects.