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Environmental fate & pathways

Biodegradation in water: screening tests

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Administrative data

Link to relevant study record(s)

Description of key information

 Readily Biodegradable, 74.4 % after 28 days, OECD 301 C, Yoshikawa (1993)

Key value for chemical safety assessment

Biodegradation in water:
readily biodegradable

Additional information

The key study Yoshikawa (1993) is a non-GLP study yet was conducted in accordance to the standardised guideline the OECD 301.C. The original full study report is in Japanese and has been translated into English. Sufficient details were reported to assess the quality of the submitted results; the study has been assigned a reliability score of 2 in line with the principles for assessing data quality as defined by Klimisch (1997).

The biodegradation of the test material was determined in a ready biodegradability (modified MITI Test (I)) performed according to the OECD guideline 301.C. Standard activated sludge was used as the source of microorganisms, and biochemical oxygen demand (BOD) was continuously measured by closed system automatic measuring equipment of consumed oxygen.

Under the conditions of the study, the test material degraded by 74.4 % after 28 days and was determined to be readily biodegradable.