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Environmental fate & pathways

Adsorption / desorption

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Reference
Endpoint:
adsorption / desorption: screening
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: authoritative database
Justification for type of information:
data from authoritative databse
Qualifier:
according to
Guideline:
other: refer below principle
Principles of method if other than guideline:
To estimate the log Koc of test chemical
GLP compliance:
not specified
Media:
soil
Key result
Type:
Koc
Value:
240 L/kg
Remarks on result:
other: log Koc value -2.38
Validity criteria fulfilled:
not specified
Conclusions:
The Log Koc value was estimated to be 2.38. Thus based on the result it is concluded that the test substance has low sorption to soil and sediment and therefore has moderate migration potential to ground water.
Executive summary:

The Koc of test chemical is estimated by using a measured log Kow of 1.83 and a regression-derived equation.The Koc is estimated as approximately 240 L/kg ,the Log Koc value was determined to be 2.38. Thus based on the result it is concluded that the test substance has low sorption to soil and sediment and therefore has moderate migration potential to ground water

Description of key information

The Log Koc value was estimated to be 2.38. Thus based on the result it is concluded that the test substance has low sorption to soil and sediment and therefore has moderate migration potential to ground water.

Key value for chemical safety assessment

Additional information

Following different studies includes estimated study for the target chemical to observe the Adsorption of test chemical.

In first study (HSDB) the Koc of test chemical is estimated by using a measured log Kow of 1.83 and a regression-derived equation. The Koc is estimated as approximately 240 L/kg .The Log Koc value was determined to be 2.38. Thus based on the result it is concluded that the test substance has low sorption to soil and sediment and therefore has moderate migration potential to ground water.

The Soil Adsorption Coefficient i.e. Koc value of test chemical was estimated using EPI suite KOCWIN Program (v2.00) as 184.5L/kg (log Koc= 2.26) by means of MCI method at 25 deg. C.  This log Koc value indicates that test chemical has low sorption to soil and therefore test chemical has moderate migration potential to ground water.

Thus based on the above results it is concluded that the test substance has low sorption to soil and sediment and therefore has moderate migration potential to ground water...