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Environmental fate & pathways

Endpoint summary

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Additional information

Biodegradation in water :

The half life period of 4,4'-dinitrostilbene-2,2'-disulphonic acid in water is 60 days and based on this value it can be concluded that the chemical is persistent in water medium and will not easily bio-degrade. Also the diffusion percentage of 4,4'-dinitrostilbene-2,2'-disulphonic acid in water medium was observed to be 7%.

 

Media

Half life

(days)

Percent in Medium

Water

60

7%

Biodegradation in water and sediment :

Half life period of 4,4'-dinitrostilbene-2,2'-disulphonic acid in water observed 60days (half-life) while in sediment it is 540 days.(half-life).

The supporting study also indicates the half life of 4,4'-dinitrostilbene-2,2'-disulphonic acid in water and sediment to be 1440 hrs and 13000 hrs respectively.

Based on this half life values of 4,4'-dinitrostilbene-2,2'-disulphonic acid, it is concluded that the chemical is non biodegradable in water and sediment medium.

Media

Half life

(days)

Percent in Medium

Water

60

7%

sediment

540

11%

Media

Half life

(hrs)

Percent in medium

Emission

(kg/hr)

 

Soil

1440

7.22%

 

1000

Sediment

13000

10.9%

 

0

Biodegradation in soil :

 The PBT Profiler & EPI Suite has estimated that 4,4'-dinitrostilbene-2,2'-disulphonic acid is expected to be found predominantly in soil and its persistence estimate is based on its transformation in this medium. Its half-life in soil, 120 days., exceeds the threshold of being persistent in soil.Therefore, 4,4'-dinitrostilbene-2,2'-disulphonic acid is estimated to be persistent in the soil environment. The substance 4,4'-dinitrostilbene-2,2'-disulphonic acid diffuse to the extent of 82% in the soil medium.

PBT Profiler

Media

Half life

(days)

Percent in Medium

Soil

120

82%

Fugacity Model by EPI Suite estimation database

 

Mass Amount (percent)

Half-Life (hr)

Emissions (kg/hr)

Soil

81.9

2.88e+003

1000