2,5-bis-isocyanatomethyl-bicyclo[2.2.1]heptane

Biodegradation in soil

Administrative data

Endpoint:

biodegradation in soil: simulation testing

Data waiving:

exposure considerations

Justification for data waiving:

the study does not need to be conducted because direct and indirect exposure of soil is unlikely

Justification for type of information:

In accordance with column 2 of REACH Annex IX, further biotic degradation testing is not proposed as the Chemical Safety Assessment does not indicate the need to investigate further the degradation of the substance and as direct and indirect exposure of soil is unlikely (see chapter 9 of the CSR).
The substance NBDI reacts rapidly with water to form NBDA. Even though NBDA is not readily biodegradable and thus potentially P, it is not bioaccumulative (BCF is 22 L /kg). Furthermore, NBDA reacts subsequently with NBDI to form oligomers which are also not deemed to bioaccumulate based on their larger sizes.

Results and discussion

Transformation products:

not specified