Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
3.5 µg/L
Assessment factor:
10
Extrapolation method:
assessment factor

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.35 µg/L
Assessment factor:
100
Extrapolation method:
assessment factor

STP

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

Sediment (freshwater)

Hazard assessment conclusion:
PNEC sediment (freshwater)
PNEC value:
40.4 µg/kg sediment dw
Assessment factor:
1
Extrapolation method:
equilibrium partitioning method

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
4.04 µg/kg sediment dw
Assessment factor:
1
Extrapolation method:
assessment factor

Hazard for air

Air

Hazard assessment conclusion:
no hazard identified

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
PNEC soil
PNEC value:
6.01 µg/kg soil dw
Assessment factor:
1
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

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

Additional information

Conclusion on classification

Classification

Based on ZMB2 test data, ZMB2 is considered to be classified for the environment based upon the lowest chronic toxicity score for aquatic species, the partition coefficient result and the ready biodegradation result.

NOEC (21 day) Daphnia magna: 0.0346 mg/L

EC50 (48 hours) Daphnia magna: 1.4 mg/L

Log Pow: 0.4

Ready biodegradation: 27% after 28 days (inherently biodegradable)

ZMB2 is therefore considered to be classified as Chronic Category 1 H410: Very toxic to aquatic life with long lasting effects according to Table 4.1.0 and Table 4.1.4 of EC Regulation 1272/2008, and N; R51/53 Dangerous for the environment; Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment in accordance with Annex VI of Directive 67/548/EEC.