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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Biodegradation in soil

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Administrative data

Link to relevant study record(s)

Description of key information

More than 99% of the soil tetrachloroethylene was dechlorinated in less than 200 days of incubation under either sulfate-reducing or methanogenic conditions at 20 °C. The half-life in soil was greater than 38.5 days (Pavlostathis SG and Zhuang P, 1993)

Key value for chemical safety assessment

Half-life in soil:
38.5 d
at the temperature of:
290 K

Additional information

Based upon the data reported tetrachloroethylene undergoes anaerobic degradation. The process by which the degradation occurs is reductive dechlorination, the degradation products reported are trichloroethylene, dichloroethylene, vinyl chloride, ethene and ethane. The degradation products found vary and are dependent upon the experimental conditions used.