Registration Dossier

Diss Factsheets

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.1 mg/L
Assessment factor:
1 000
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
1 mg/L

Marine water

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

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.082 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:
0.105 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Calculation of PNEC water was based on results obtained in short-term studies on fish, daphnia and algae, namely L(E)C50 > 100 mg/l. These results indicate the lack of acute toxicity for the three trophic levels up to concentration of 100 mg/l.

Conclusion on classification

According to the CLP Regulation (EC n.1272/2008), the threshold of classification of a substance for acute aquatic toxicity is 1 mg/l. This limit is compared with LC50 (96h) for fish, EC50 (48 h) for daphnia and EC50 (72 - 96 h) for algae or aquatic plants.

LC50 96h > 100 mg/l was obtained based on read-across approach (see section 13 of this IUCLID dossier).

A study to assess the short-term Toxicity to Daphnia Magna of Chlorphenesin was performed and the result of the test was EC50 48h > 100 mg/l (nominal concentration).

Toxicity on algae was assessed in 72 -hour test. EC50 for algal growth rate was identified as major than 100 mg/l (nominal concentration).

No chronic toxicity data is available from long-term studies. In case of lack of chronic data, the potential for chronic toxicity is identified by appropriate combinations of acute toxicity data and lack of biodegradability. The threshold of classification is 100 mg/l.

Since no acute toxicity of test substance no classification for both acute and chronic aquatic toxicity was applied according to the CLP Regulation (EC n.1272/2008). 

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