Registration Dossier

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

The overall environmental fate profile indicates that the substance is of low persistence in the environment.The test substance is not readily biodegradable under the conditions of OECD but the substance is quickly eliminated from both water body and sediment, with hydrolysis to the free acid and further biodegradation of this hydrolysis product (DT50 of 0.19 and 1.5 days based on data obtained from soil and water/soil systems). Therefore, hydrolysis is expected to be an important process in the fate of the substance and with a log Pow being below 3 there are no critical issues with respect to ecological and environmental bioconcentration aspects of the hydrolysis products. An adsorption/desorption study with the main hydrolysis product following OECD 106 shows Koc values of four soils ranging from 68 to 176 mL/g, which indicates a low tendency to adsorb to soil. The soil photolysis is not a degradation pathway.The vapour pressure of the substance is very low and the substance is thus considered to be not volatile. Therefore, any risk of long-range transport by or accumulation in the air is very unlikely, for the substance and it is concluded that the substance will not accumulate in air and will not be transported through the vapour phase into other environmental compartments in relevant amounts. Thus, air is not a likely route of environmental contamination and no accumulation and subsequent deposition of the substance is to be expected.