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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Environmental fate & pathways

Bioaccumulation: aquatic / sediment

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Administrative data

Link to relevant study record(s)

Description of key information

Bioaccumulation is not applicable to petro pitch. Provisionally, the BCF for benzo[a]pyrene is provided.

Key value for chemical safety assessment

BCF (aquatic species):
608 dimensionless

Additional information

As for the structure analogue pitch, coal tar, high-temp., benzo[a]pyrene (BaP) is also used as marker substance for petro pitch in order to characterise environmental properties of petro pitch.

The BCF in fish of 608 (sunfish: Lepomis macrochirus) determined with BaP as test substance was the only value of a study among 13 published investigations to be given the high reliability of 2 in the risk assessment report for coal-tar pitch (EU 2008, Tab. 3.28). This value is in line with an unpublished fish feeding study using also BaP as test substance (rainbow trout: Oncorhyncus mykiss): BCF = 977 with a very short depuration half-life of 1.1 d (Lampi et al. 2009: CONCAWE review).

This suggests that the BCF of BaP should be distinctly below 2000.


Lampi M and Parkerton T (2009) Bioaccumulation Assessment of PAHs - Review Paper Prepared for CONCAWE, October 2009

EU (2008) Coal-Tar Pitch, high temperature - Risk Assessment. European Union Risk Assessment Report, The Netherlands

According to EU 2008, presented data from:

Jimenez BD, Cirmo CP, and McCarthy JF (1987) Effects of feeding and temperature on uptake, elimination and metabolism of benzo[a]pyrene in the bluegill sunfish (Lepomis macrochirus). Aquat. Toxicol. 10, 41-57