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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
0.012 µg/L
Assessment factor:
10
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
0.011 µg/L

Marine water

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

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0 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:
0.031 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 information

 

Biodegradation: the substance is regarded to be not readily biodegradable.

 

Hydrolysis: The DT50 values (25 °C) for Fenamiphos were 245, 301 and 235 days at pH 5, 7 and 9, respectively.

 

Partition coefficient: log Kow = 4.01 at 30 °C

 

Ecotoxicological key information

 

Short-term toxicity

Fish: LC50 (96h) = 9.3 µg a.i./L (mean measured, Lepomis macrochirus, OECD 203)

Aquatic invertebrates: EC50 (48h) = 1.06 µg/L (geom. mean measured, Daphnia magna, OECD 202)

Aquatic algae: EC50 (growth rate, 72h) > 9.2 mg a.i./L (mean measured, corrected to 100 % purity, Desmodesmus subspicatus, OECD 201)

 

Long-term toxicity

Fish: NOEC (91d) = 3.8 µg a.s./L (mean measured, Oncorhynchus mykiss, EPA-FIFRA Guideline 72-4)

Aquatic invertebrates: NOEC = 0.12 µg a.i./L (mean measured, Daphnia magna, FIFRA method)

Aquatic algae: NOEC (growth rate, 72h)= 1.0 mg a.i./L (mean measured, corrected to 100 % purity, Desmodesmus subspicatus, OECD 201)

 

 

Classification, Labelling, and Packaging Regulation (EC) No 1272/2008 

The available experimental test data are reliable and suitable for classification purposes under Regulation (EC) No 1272/2008. Based on available data, the Fenamiphos is classified and labelled as Aquatic Acute I, H400: Very toxic to aquatic life (Acute M = 100) and Aquatic Chronic I, H410: Very toxic to aquatic life with long lasting effects (Chronic M = 100) according to Regulation (EC) No 1272/2008 (CLP), as amended for the eighteenth time in Regulation (EU) 2022/629. This classification is in line with EFSA Conclusion on peer review of the pesticide risk assessment of the active substance Fenamiphos (approved 10 December 2018).