Fatty acids, C16-18, C12-18-alkyl esters

Ecotoxicological Summary

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:

no hazard identified

Marine water

Hazard assessment conclusion:

no hazard identified

STP

Hazard assessment conclusion:

no hazard identified

Sediment (freshwater)

Hazard assessment conclusion:

no hazard identified

Sediment (marine water)

Hazard assessment conclusion:

no hazard identified

Hazard for air

Air

Hazard assessment conclusion:

no hazard identified

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:

PNEC soil

PNEC value:

5 mg/kg soil dw

Assessment factor:

100

Extrapolation method:

assessment factor

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:

no potential for bioaccumulation

Conclusion on classification

According to Article 13 of Regulation (EC) No. 1907/2006 "General Requirements for Generation of Information on Intrinsic Properties of substances", Information on intrinsic properties of substances may be generated by means other than tests e.g. from information from structurally related substances (grouping or read-across), provided that conditions set out in Annex XI are met. Annex XI, "General rules for adaptation of this standard testing regime set out in Annexes VII to X” states that “substances whose physicochemical, toxicological and ecotoxicological properties are likely to be similar or follow a regular pattern as a result of structural similarity may be considered as a group, or ‘category’ of substances. This avoids the need to test every substance for every endpoint”. Since the group concept is applied to the category members of the LCAE, data will be generated from a representative category member to avoid unnecessary animal testing. Additionally, once the group concept is applied, substances will be classified and labelled on this basis.

Degradation

Biodegradation: readily biodegradable: 75.3% (OECD 301C); read-across

Bioaccumulation

Expert statement: Bioaccumulation is assumed to be low.  

Aquatic acute toxicity

96 h, LC50 (Danio rerio): > 10000 mg/L (nominal); no effect up to the limit of water solubility

48 h, EL50 (Daphnia magna): > 100 mg/L (nominal); no effect up to the limit of water solubility

72 h, ErC50 (Desmodesmus subspicatus): > 100 mg/L (nominal); no effect up to the limit of water solubility; read-across

72 h, ErL50 (Desmodesmus subspicatus): > 100 mg/L (nominal); no effect up to the limit of water solubility; read-across

Aquatic chronic toxicity

72 h, NOELR (Desmodesmus subspicatus): ≥ 100 mg/L (nominal); no effect up to the limit of water solubility; read-across

21 d, NOEC (Daphnia magna): ≥ 1 mg/L (no effect up to the limit of water solubility); read-across

21 d, NOEC (Daphnia magna): ≥ 100 mg/L (nominal; no effects up to the water solubility); read-across

CLP

Based on the data above, fatty acids, C16-18, C12-18-alkyl esters is considered to be rapidly degradable. No acute aquatic toxicity was observed up to the water solubility limit (< 0.05 mg/L) for fish, algae and daphnids. Valid chronic data are available with a NOEC (21 d) ≥ 1 mg/L and ≥ 100 mg/L for Daphnia magna and a NOELR (72 h) of ≥ 100 mg/L for Desmodesmus subspicatus. Therefore, fatty acids, C16-18, C12-18-alkyl esters does not need to be classified and labelled as environmental hazard according to the 2nd ATP of the Regulation (EC) No. 1272/2008 (CLP).

DSD

The substance is poorly soluble in water and no effects occurred up to its solubility limit in acute tests for fish, algae and aquatic invertebrates. Therefore, fatty acids, C16-18, C12-18-alkyl esters does not need to be classified and labelled as environmental hazardous according to Directive 67/548/EEC.