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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
1.17 µg/L
Assessment factor:
1 000
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
11.7 µg/L

Marine water

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

STP

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

Sediment (freshwater)

Hazard assessment conclusion:
PNEC sediment (freshwater)
PNEC value:
0.097 mg/kg sediment dw
Assessment factor:
4.6
Extrapolation method:
equilibrium partitioning method

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.01 mg/kg sediment dw
Assessment factor:
4.6
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:
0.019 mg/kg soil dw
Assessment factor:
1.13
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
PNEC oral
PNEC value:
313 mg/kg food
Assessment factor:
90

Additional information

The PNECs for the aquatic environment are derived from the lowest effect level observed in the available acute aquatic toxicity tests by applying the following assessment factors to the lowest L(E)C50 of 1.17 mg/L. PNEC STP was derived from the available study on microbial respiration inhibition study giving a NOEC of  31.6 mg/L by applying an assessment factor of 10. The PNEC secondary poisoning was derived from the available information on repeated dose toxicity of 14.3mg/kg bw/day by applying an assessment factor of 90. For Soil and sediment PNECs, wet weight PNECs were calculated with using equilibrium partitioning as described in Guidance R.10 & R.16, conversion to dry weight was performed with factor of 4.6 (1.13 soil).

Conclusion on classification

Environmental classification and labelling of a substance is generally based on data from short-term aquatic toxicity results, the ready biodegradability of the substance and an experimentally determined BCF (or if absent the measured octanol/water partition coefficient). Available adequate chronic toxicity data is also relevant for the assessment of long-term aquatic hazards (Regulation 286/2011/EC).

Short-term aquatic toxicity data is available for all three trophic levels. The lowest short-term L(E)C50 was for daphnia with a 48-hour EC50 value of 1.17 mg/l. Chronic aquatic toxicity data is only available for algae; the 72-hour NOEC is 0.759 mg/L (based on growth rate, analogue substance nonanal). Decanal is readily biodegradable and has a log Kow of 3.8.

Based on the above data, decanal is classified as R51/53 according to Directive 67/548/EEC (DSD) and Aquatic Chronic 3 (H412) according to the CLP Regulation 1272/2008/EC & adaptation 286/2011/EC.