Sodium O-ethyl dithiocarbonate

Ecotoxicological Summary

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:

PNEC aqua (freshwater)

PNEC value:

0.26 mg/L

Assessment factor:

10

Extrapolation method:

assessment factor

PNEC freshwater (intermittent releases):

0.13 mg/L

Marine water

Hazard assessment conclusion:

PNEC aqua (marine water)

PNEC value:

7.1 mg/L

Assessment factor:

10

Extrapolation method:

assessment factor

STP

Hazard assessment conclusion:

PNEC STP

PNEC value:

1 mg/L

Assessment factor:

10

Extrapolation method:

assessment factor

Sediment (freshwater)

Hazard assessment conclusion:

PNEC sediment (freshwater)

PNEC value:

5.6 mg/kg sediment dw

Assessment factor:

10

Extrapolation method:

assessment factor

Sediment (marine water)

Hazard assessment conclusion:

PNEC sediment (marine water)

PNEC value:

0.56 mg/kg sediment dw

Assessment factor:

10

Extrapolation method:

assessment factor

Hazard for air

Air

Hazard assessment conclusion:

PNEC air

PNEC value:

10 mg/m³

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:

PNEC soil

PNEC value:

4.1 mg/kg soil dw

Assessment factor:

10

Extrapolation method:

assessment factor

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:

PNEC oral

PNEC value:

133.3 mg/kg food

Assessment factor:

30

Additional information

Summary of Acute Toxicity for Organism Group andAquatic algae, cyanobacteriaand aquatic plants
Organism Group	Average Acute Toxicity	Acute Toxicity Range
Invertebrates	Moderately toxic	Not Acutely Toxic to Moderately toxic
Fish	slightly toxic	Not Acutely Toxic to Slightly toxic
Molluscs and Amphibians	Not Acutely Toxic	Not Acutely Toxic to Slightly toxic
Annelida and microorganisms	Not Acutely Toxic	Not Acutely Toxic to Slightly toxic
Aquatic algae, cyanobacteria and aquatic plants	Not Acutely Toxic	Not Acutely Toxic to Slightly toxic

Conclusion on classification

The  SEX does not meet the criteria to be classified for environmental hazards. Based on the hazard assessment of SEX in section 2.1 and 2.2.in IUCLID 6, available data for the substance and following the “Guidance on Information Requirement and Chemical Safety Assessment R.10, it is concluded that none of the following phrases needs to be assigned according to the criteria described in Directive 67/548 and in the CLP Regulation:

 

Directive 67/548

N; R50 R52 R53 N;R50/53 N;R51/53 R52/53 N;R59

CLP Regulation

H400 Aquatic. Acute 1 Very toxic to aquatic life H413 Aquatic Chronic 4 May cause long lasting harmful effects to aquatic life H400 Aquatic acute 1, Very toxic to aquatic life H410 Aquatic chronic 1 Very toxic to aquatic life with long lasting effects H411 Aquatic Chronic 2 Toxic to aquatic life with long lasting effects H412 Aquatic Chronic 3 Harmful to aquatic life with long lasting effects EUH059 Ozone, Hazardous to the ozone layer

 

 The substance has no potential to cause toxic effects if accumulated via the food chain in higher organisms.Based on on reliable ecotoxicological studies which indicate that the substance is moderately toxic to not acutely toxic and not classified.

Based on the hazard assessment of SEX in section 2.1 and 2.2, in IUCLID 6., available data for the substance and following the “Guidance on Information Requirement and Chemical Safety Assessment R.16, Environmental exposure estimation”, it is concluded that none of the following symbol and phrases needs to be assigned according to the criteria described in Directive 67/548:T+, T, or Xn and the risk phrases R48, R60, R61, R62, R63, R64.