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Diss Factsheets

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

This substance is a hydrocarbon UVCB. Standard tests for this endpoint are intended for single substances and are not appropriate for this complex substance. However, this endpoint is characterised using quantitative structure property relationships for representative hydrocarbon structures that comprise the hydrocarbon blocks used to assess the environmental risk of this substance with the PETRORISK model (see Product Library in PETRORISK spreadsheet attached to IUCLID Section 13).

In a key 47 day manometric respirometry ready biodegradability test (OECD 301F, KS=1), activated sludge was exposed to distillates (petroleum), light catalytic cracked (MRD-10-576) at a nominal concentration of 50 mg/L. The test system was considered inherently biodegradable, reaching 56.32% biodegradation in 28 days and 61.23% biodegradation in 47 days based on O2 consumption (ExxonMobil 2011a).