Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.32 µg/L
Assessment factor:
10
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
7.4 µg/L

Marine water

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

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
10 mg/L
Assessment factor:
100
Extrapolation method:
assessment factor

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
3.2 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:
6.4 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
PNEC oral
PNEC value:
4.56 mg/kg food

Additional information

Conclusion on classification

Based on Directive 67/548/EEC, results of validated structure activity relationships and expert judgment may also be taken into account where appropriate with regard to classification and labelling of substances.

Based on all available data for daphnids, fish and algae, zinc bis(dibenzyldithiocarbamate) should be classified as R50 (very toxic to aquatic organisms) according to Directive 67/548/EEC. The lowest L(E)C50 value (48-h EC50 of 0.74 mg/L in Daphnia magna) is lower than 1 mg/L. As zinc bis(dibenzyldithiocarbamate) is not readily biodegradable further classification with R53 (may cause long-term adverse effects in the aquatic environment) is necessary.

According to the EU Classification, Labelling and Packaging of Substances and Mixtures (CLP) Regulation (EC) No. 1272/2008 zinc bis(dibenzyldithiocarbamate) needs to be labelled for the same reasons as stated above with H400 (Acute toxicity Cat. 1; very toxic to aquatic life) and H410 (Chronic toxicity Cat. 1; very toxic to aquatic life with long lasting effects).