Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

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

Marine water

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

STP

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

Sediment (freshwater)

Hazard assessment conclusion:
PNEC sediment (freshwater)
PNEC value:
0.233 mg/kg sediment dw
Extrapolation method:
sensitivity distribution

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.023 mg/kg sediment dw
Extrapolation method:
sensitivity distribution

Hazard for air

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
PNEC soil
PNEC value:
0.01 mg/kg soil dw
Extrapolation method:
sensitivity distribution

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Short-term toxicity of ethyl methyl carbonate to freshwater fish, aquatic invertebrates and algae has been determined experimentally. Algae gave the lowest EC50 (based on measured exposure concentrations) and this was used as the critical value for calculation of PNEC values for freshwater and marine organisms. The sediment and soil PNECs were derived using the equilibrium partitioning method. The PNEC for STP microbes was calculated from a study assessing toxicity to Pseudomonas putida which determined an EC50 of 760 mg/l, a EC10 of 156 mg/l and a NOEC of 100 mg/l. The EC50 was selected as the critical value for calculation of the STP PNEC as it produced the most conservative value. 

Conclusion on classification

Based on the available ecotoxicity data and confirmed ready biodegradability, the classification of ethyl methyl carbonate is concluded to be:

- Not classified for the environment in accordance with Directive 67/548/EEC criteria.

- Not classified for the environment in accordance with Regulation 1272/2008 (EU CLP GHS) criteria.

No classification for hazards to the environment is applied to ethyl methyl carbonate in Annex VI of the CLP Regulation No. 1272/2008.