Registration Dossier

Diss Factsheets

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

The test substance is covered by the category approach of methylenediphenyl diisocyanates (MDI). Hence, data of the category substances can be used to cover this endpoint. The read-across category justification document is attached in IUCLID section 13. 


Due to the transient existence of MDI substances in the environment, only estimated values for water solubility, octanol-water partition coefficient (log Kow), soil adsorption coefficient (log Koc), and other inter-media partitioning parameters can be determined; and these numbers have little scientific value or relevance. The transport and distribution of the MDI substances are governed by their reactivity in environmental media, and properties such as water solubility, log Kow, and soil adsorption coefficient are of no real value and cannot be experimentally determined properly. No accumulation or inter-media exchange of the MDI substances is expected in the environment.

Additional information

Categories Display