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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Marine water

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

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.53 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:
0.265 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

For the calculation of the partition coefficients with EUSES a Log Pow of -1 was used as input parameter.

PNEC freshwater and marine water sediment

K_(susp-water) = 0.979

RHO_(susp) = 1150

Conversion factor (wwt -> dwt): 4.6

PNEC_freshwater sediment

= (K_(susp-water)/ RHO_(susp))*PNEC_water * 1000

= (0.979/1150)* 1.35*1000

= 1.15 mg/kg wwt

= 5.3 mg/kg dwt

The respective PNEC (freshwater sediment) for cesium is 4.2 mg/L (dwt).

PNEC_marine water sediment

= (K_(susp-water)/ RHO_(susp))*PNEC_ marine water * 1000

= (0.979/1150)* 0.125*1000

= 0.115 mg/kg wwt

= 0.53 mg/kg dwt

The respective PNEC (marine water sediment) for cesium is 0.42 mg/L (dwt).

PNEC soil

K_(soil-water) = 0.295

RHO_(susp) = 1700

Conversion factor (wwt -> dwt): 1.13

PNEC_soil

= (K_(soil-water)/ RHO_(soil))*PNEC_water * 1000

= (0.295/1700)* 1.35* 1000

= 0.234 mg/kg wwt

= 0.265 mg/kg dwt

The respective PNEC (soil) for cesium is 0.21 mg/L (dwt).

Conclusion on classification

Based on the available data the test item has not to be classified according to Regulation (EC) No 1272/2008 (CLP).