Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0 mg/L
Assessment factor:
10
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
0 mg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0 mg/L
Assessment factor:
100
Extrapolation method:
assessment factor
PNEC marine water (intermittent releases):
0 mg/L

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:
0.316 mg/kg sediment dw
Extrapolation method:
equilibrium partitioning method

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.032 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:
0.004 mg/kg soil dw
Assessment factor:
10
Extrapolation method:
assessment factor

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Conclusion on classification

Classification related key information

Biodegradation in water: Not readily biodegradable

BCF = 180 ± 40

Acute toxicity:

- to Fish: LC50(96h) = 0.041 mg/L (mean measured) for Oncorhynchus mykiss (OECD 203)

- to aquatic invertebrates: EC50(48h) = 0.03 mg/L (mean measured) for Daphnia magna (OECD 202)

- to algae: ErC50(120h) = 0.22 mg/L (mean measured) for Pseudokirchneriella subcapitata (EPA OPP 122-2)

Chronic toxicity:

- to Fish: NOEC (35 d) = 0.0049 mg/L (mean measured) for Pimephales promelas (EPA OPP 72-4)

- to aquatic invertebrates: NOEC (21d) = 0.0036 mg/L (mean measured) for Daphnia magna (EPA OPP 72-4)

- to algae: ErC10(120h) = 0.0087 mg/L (mean measured) for Pseudokirchneriella subcapitata (EPA OPP 122-2)

 

 

Classification justification according to CLP

According to the data listed above Bromoxynil octanoate is not rapidly biodegradable and has a low potential to bioaccumulate (BCF:≤500). The most sensitive acute effect was obtained for Daphnia magna with an EC50(48 h) of 0.03 mg/L. The most sensitive chronic effect was the reported NOEC (21 d) of 0.0036 mg/L in a chronic toxicity study on Daphnia magna. Based on the available data substance is need to be classified and labelled as environmentally hazardous category Acute 1 and Chronic 1. This in line with harmonised classification of Bromoxynil octanoate on Annex VI to CLP. The harmonised classification and labelling is Aquatic Acute 1 and Aquatic Chronic 1 according to Annex VI to CLP.

M-factor for acute: 10

M-factor for chronic toxicity: 10