Registration Dossier
Registration Dossier
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EC number: 229-563-2 | CAS number: 6610-29-3
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 3.1 µg/L
- Assessment factor:
- 1 000
- PNEC freshwater (intermittent releases):
- 31 µg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.31 µg/L
- Assessment factor:
- 10 000
STP
- Hazard assessment conclusion:
- no hazard identified
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 17.1 µg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 1.7 µg/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:
- 1.6 µg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
Conclusion on classification
- Biodegradability: the test item is not readily biodegradable
- Log Kow = -1.21
- Toxicity to fish: LC50-96h = 20 mg/L
- Short term toxicity to aquatic invertebrates: 48h-EC50 = 3.1 mg/L
- Toxicity to aquatic algae: ErC50-72h= 30 mg/L & ErC10-72h= 18 mg/L
- According to the Directive 67/548/EC:R51/53
- According to CLP: chronic toxicity category 2
The following data for aquatic toxicity and environmental fate are available:
Regarding these data,4-methyl-3-thiosemicarbazideshould be classified as follows:
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