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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

The screening test inherent to the biodegradability of the substance was calculated using the software BIOWIN v4.10. 
The results indicate that Thiosemicarbazide,is not expected to be readily biodegradable.

Key value for chemical safety assessment

Biodegradation in water:
under test conditions no biodegradation observed

Additional information

The screening test inherent to the biodegradability of the substance was calculated using the software BIOWIN v4.10. The results indicate that Thiosemicarbazide,is not expected to be readily biodegradable.

In the supporting study, biodegradation screening test was done for 4 weeks by using BOD, TOD and HPLC methods. Initial concentration of thiosemicarbazide is 100 ppm and concentration of inoculum (sludge) is 30 ppm. The test substance found to be 0% degradable after 4 weeks.