Registration Dossier
Registration Dossier
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EC number: 269-665-4 | CAS number: 68308-74-7
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.006 mg/L
- Assessment factor:
- 50
- Extrapolation method:
- assessment factor
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.001 mg/L
- Assessment factor:
- 500
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 100 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 273.3 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 27.33 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:
- 54.64 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- PNEC oral
- PNEC value:
- 66.667 mg/kg food
- Assessment factor:
- 300
Additional information
PNECs for DMATO were derived based on acute toxicity studies available for fish, Daphnia magna, and algae, along with a chronic Daphnia reproduction study. The PNEC freshwater was calculated to be 0.0064 mg/L based on an assessment factor of 50. The PNECmarine was calculated to be 0.00064 mg/L with an assessment factor of 500. The PNECs for sediment and soil compartments were derived from the aquatic PNECs by equilibrium partitioning.
Based on the currently available endpoints, the following PNECs have been derived:
PNECfreshwater = 0.0064 mg/L
PNEC marine water = 0.00064 mg/L
PNEC freshwater sediment = 273.3 mg/kg dw
PNEC marine sediment = 27.3 mg/kg dw
PNEC soil = 54.64mg/kg dw
PNEC stp = 100 mg/L
PNEC oral (secondary poisoning) = 66.667 mg/kg food
Conclusion on classification
Based on the 48-hour EL50 of 0.75 mg/L for Daphnia magna, DMATO is classified for Acute Aquatic Toxicity, Category 1. In addition to this DMATO is classified for Aquatic Toxicity, Chronic Category 3 as it is rapidly biodegradable and the lowest chronic NOEC is >0.1 mg/L and <1.0 mg/L.
An M-factor of 1 has been assigned for DMATO based on the aforementioned acute and chronic toxicity values.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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