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Classification & Labelling & PBT assessment

PBT assessment

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PBT assessment: overall result

PBT status:
the substance is not PBT / vPvB
Justification:

The scientific data do not support the current classification of anthracene oil as a PBT and vPvB substance.

Anthracene oil (CAS no. 90640 -80 -5) contains the decided PBT constituent anthracene (CAS no. 120-12-7) to approx. 6%. 

The data show that the properties of the substance do not allow a direct comparison with all the criteria in Annex XIII, but nevertheless indicate that the substance does not have these properties, and the substance is not considered PBT/vPvB.

Biodegradation:

Based on screening criteria, the 16 EPA-PAH taken as reference substances are not readily biodegradable, some of them are considered to be inherently biodegradable (2- and 3-ring aromatic compounds).

Bioaccumulation:

Single PAHs which are constituents of anthracene oil show only low to moderate bioaccumulating potential, with reliable BCF values in fish generally below 2000. Furthermore, there is evidence for the absence of a biomagnification potential for PAHs including anthracene (Lampi and Parkerton 2009) (WHO 2003).

Toxicity:

Long-term toxicity data of Anthracene Oil (CAS No. 90640-80 -5) are not available for the total mixture. A NOAEL cannot be established for a UVCB compound like anthracene oil in satisfactory manner. On the other hand, single key components of anthracene oil show high chronic toxicity, with NOAELs distinctly below 1 mg/L and a few also below 10 µg/L. They confirm the classification for environmental hazards. 

Conclusion: Single PAH present in anthracene oil fulfil the T-criterion for PBT. This is not considered to be directly applicable to anthracene oil (AO) as such.

References:

Lampi M and Parkerton T (2009). Bioaccumulation Assessment of PAHs, Review Paper Prepared for CONCAWE by ExxonMobil Biomedical Sciences, Inc., October 2009

WHO (2003). HEALTH RISKS OF PERSISTENT ORGANIC POLLUTANTS FROM LONG-RANGE TRANSBOUNDARY AIR POLLUTION, JOINT WHO/CONVENTION TASK FORCE ON THE HEALTH ASPECTS OF AIR POLLUTION. WHO Regional Office for Europe, World Health Organization 2003