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Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

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Kerosine fractions are not readily biodegradable but are considered inherently biodegradable. In a report on environmental classification (Concawe 2001), it was concluded that, based on the known properties of hydrocarbons in the range C9 to C16,kerosines are not readily biodegradable, but are regarded as being inherently biodegradable, since they can be degraded by micro-organisms.

In a further investigation (Concawe 2012) on PBT evaluation of petroleum substances CONCAWE developed QSAR estimates (BioHCwin) and reviewed existing data for individual hydrocarbons representative of the various ‘hydrocarbon blocks’ covering a range of petroleum substances. Using the Hydrocarbon Block method and data on biodegradation of representative hydrocarbons in the range C9 to C20, it is concluded that kerosines do not meet the persistence criteria and can be regarded as being inherently biodegradable.

Concawe 2001:Environmental classification of petroleum substances - summary data and rational. Report No 01/54. Concawe Brussels.

Concawe 2012:An evaluation of the Persistence, Bioaccumulation and Toxicity of Petroleum Hydrocarbons (revised), May 2012

Biodegradation in water screening test:

Substance is a hydrocarbon UVCB. Tests for biodegradation in water are designed for use with single chemical substances and results used for classification.

Kerosine fractions are not readily biodegradable but are considered inherently biodegradable.

Biodegradation in water and sediment, simulation test:

Substance is a hydrocarbon UVCB. Tests for biodegradation in water are designed for use with single chemical substances and results used for classification. For the purpose of risk assessment, this endpoint is characterized using quantitative structure property relationships for representative hydrocarbon structures that comprise the hydrocarbon blocks. The environmental risk of this substance is assessed using the PETRORISK model (see PETRORISK report attached to IUCLID Section 13).

Biodegradation in soil:

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 characterized 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 PETRORISK report attached in IUCLID section 13).

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