Registration Dossier

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

Biodegradation in water: screening tests:  

Chlorocresol was estimated to be 50% biodegradable in water in 38 days (half-life) indicating that chlorocresol is readily biodegradable in water since the half life is less than the threshold of 40 days (to qualify the chemical as persistent).

 

Media

Half life

(days)

Percent in Medium

Water

38

19%

 

Biodegradation in water and sediment: simulation tests:

Based on level III fugacity model the half life period of chlorocresol was estimated

Half life period of chlorocresol in water was observed to be 38 days while in sediment it is 340 days. Based on these half life values of it is concluded that chlorocresol is readily biodegradable in water where as it is non biodegradable in sediment. However, since there is no diffusion of the substance in the sediment as evident from the reported data (1% in sediment) and hence persistence in the sediment compartment is not likely to be critical.

Media

Half life

(days)

Percent in Medium

Water

38

19%

 

Sediment

340

1%

 

Biodegradation in soil:

Half life period of chlorocresol in Soil was observed to be 75 days which does noy exceeds the threshhold of >120 days. Based on these half life values it is concluded that chlorocresol is readily biodegradable (not persistent) in Soil

Media

Half life

(days)

Percent in Medium

Soil

75

80%

 

 

Media

Half life

(hrs)

Percent in Medium

Soil

1800

80%