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Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

The results of the available biodegradation studies are summarised below. Data indicate that tributylphosphate is readliy biodegradable; one paper (Kawai et al, 1986) isolated and identified a bacterial strain (Pseudomonas diminuta) capable of degrading tributylphosphate.

Test

Time

Biodegradation

Reference

Activated sludge (MITI)

28d

77.1%

Kanne, 1985a

Activated sludge (closed bottle)

28d

92%

Kanne, 1985b

Activated sludge (OECD screening test)

8d

89%

Kanne, 1985c

Activated sludge (MITI)

14d

0-41%

CITI (1992)

Activated sludge (OECD screening test)

28d

90.8%

Saeger et al, 1979

River/sea water

3d

0-28%

Kondo et al, 1987

River/sea water

7-14d

0-100%

Hattori et al, 1981

Pseudomonas diminuta

43h

100%

Kawai et al, 1986

Activated sludge

48h

30-40%

Isikawa et al, 1985

100% following acclimitisation