Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

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

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.044 mg/L
Assessment factor:
100
Extrapolation method:
assessment factor
PNEC marine water (intermittent releases):
0.12 mg/L

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
3.458 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:
0.157 mg/kg soil dw
Assessment factor:
1 000
Extrapolation method:
assessment factor

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Conclusion on classification

In order to compare the experimental results among the different EDTA species the results were related to the H4-EDTA by molecular-weight correction.

Degradation

Biodegradation: not readily biodegradable but ultimately biodegradable under special conditions. 

 

Bioaccumulation

Log Kow: -3.8 at ambient temperature at pH value of 7.2 to 8.7 (OECD 105, 107 and 117)

 

Aquatic acute toxicity

For fish: 96 h, LC50 (Lepomis macrochirus): >100 mg/L under environmental relevant conditions

For aquatic invertebrates: 48 h, EC50 (Daphnia magna): 140 mg/L

For algae/aquatic plant: 72 h, ErC50 (Desmodesmus subspicatus): >100 mg/L

 

Aquatic chronic toxicity (for each species only one key information)

For fish: no data available

For aquatic invertebrates: 21 d, NOEC (Daphnia magna): 25 mg/L

For algae/aquatic plant: 72 h, EC10 (Desmodesmus subspicatus): >100 mg/L

 

Based on the data above, the substance isnot readily biodegradable but ultimately biodegradable under special environmental conditions.The acute aquatic toxicity L(E)C50 values are > 100 mg/L for fish, invertebrates and algae. Therefore, the substance does not need to be classified and labelled as acute aquatic hazardous according to the consolidated version of Regulation (EC) No. 1272/2008 (CLP).

Valid chronic toxicity data are available. The lowest NOEC of 25 mg/L was determined for invertebrates. Therefore, the substance does not need to be classified and labelled for long-term aquatic hazards according to the consolidated version of Regulation (EC) No. 1272/2008 (CLP) and all further amendments.