Registration Dossier
Registration Dossier
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EC number: 292-607-4 | CAS number: 90640-86-1 Distillate from the fractional distillation of coal tar of bituminous coal, with boiling range of 240°C to 400°C (464°F to 752°F). Composed primarily of tri- and polynuclear hydrocarbons and heterocyclic compounds.
PBT assessment
Administrative data
PBT assessment: overall result
- PBT status:
- the substance is not PBT / vPvB
- Justification:
The scientific data base does not support the classification of the substance distillates (coal tar), heavy oils (anthracene oil high (> 50 ppm) BaP, AOH) [CAS no.90640-86-1] as a PBT and vPvB substance although AOH contains the decided PBT constituent anthracene (CAS 120-12-7) to approx. 2%.
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:
AOH consists largely of 3- and 4-ring PAH with 4-ring PAH being a prominent part of AOH. For distinct PAH, half-lives in soil have been determined (Park et al. 1990). 4-Ring PAH show half-lives between 199 and 377 days, clearly exceeding the vP criterion of Annex XIII of Reach regulation (180 days). Based on the composition of AOH, 4-ring PAH are consider to characterise adequately the biodegradation potential of AOH as a whole. Therefore, half-life of AOH is assessed to be above 180 days. Accordingly, AOH is identified as being vP.
Bioaccumulation:
Single PAHs which are constituents of AOH 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 AOH are not available for the total mixture. Key components of AOH were shown to produce chronic toxic effects in aquatic organisms at water concentrations only above the cut-off limit for the NOEC (10 µg/L).
Regarding health effects, AOH is classified as Carc. 1B. In addition, it is self-classified as Muta. 2 and as Repro. 2 according to CLP regulation based on available data. Classification as CMR identifies the substance as fulfilling the toxicity criterion (T-).
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
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