Registration Dossier

Diss Factsheets

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.07 mg/L
Assessment factor:
1 000
PNEC freshwater (intermittent releases):
0.7 mg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.007 mg/L
Assessment factor:
10 000

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
40 mg/L
Assessment factor:
10

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.24 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:
0.27 mg/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

Under the GHS classification system, BTDA was classified as Aquatic Hazard Chronic Category 3, based on the 72-h ErC50 of 68.6 mg/L from an algal growth inhibition assay on Desmsodesmus subspicatus, and the determination that the substance is not readily biodegradable. Therefore, the substance is assigned hazard statement "H412: Harmful to aquatic life with long lasting effects".

Under the DSD classification system, BTDA was classified as "R52/53: Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment", based on the 72-h ErC50 of 68.6 mg/L from an algal growth inhibition assay on Desmsodesmus subspicatus, and the determination that the substance is not readily biodegradable.