Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

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

Marine water

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

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
0.048 mg/L
Assessment factor:
10
Extrapolation method:
assessment factor

Sediment (freshwater)

Hazard assessment conclusion:
PNEC sediment (freshwater)
PNEC value:
0.45 mg/kg sediment dw
Assessment factor:
10
Extrapolation method:
assessment factor

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.09 mg/kg sediment dw
Assessment factor:
50
Extrapolation method:
assessment factor

Hazard for air

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
PNEC soil
PNEC value:
0.56 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Information about the prolonged toxicity of chloroform to species in the freshwater compartment is available from a number of valid studies. The PNEC aqua (freshwater), that has been derived by applying a factor of 10 to the NOEC for the most sensitive species - freshwater fish - is 0.146 mg/L. The marine PNEC (0.015 mg/L) and the PNEC for soil (0.019 mg/kg) were derived from this value because no valid studies are available that could be used to characterise these endpoints appropriately. These two estimated values are the lowest PNEC values derived for all environmental compartments. The PNEC aqua (intermittent releases) is derived from the lowest EC50 value obtained from short-term tests in Chlamydomonas reinhardii by applying a factor of 100. The PNEC for microorganisms (0.048 mg/L, assessment factor of 10) and for sediment-dwelling organisms (0.45 mg/L, assessment factor of 10) are derived from valid experimental data and are thus considered to be reliable.

Conclusion on classification

Chloroform should not classified as being dangerous to the environment.