Methenamine

Toxicity to terrestrial plants

Link to relevant study record(s)

Reference

Endpoint:

toxicity to terrestrial plants: long-term

Data waiving:

other justification

Justification for data waiving:

other:

Description of key information

Waiving of study: In accordance with column 2 of REACH Annex IX and X, long- and short-term toxicity to plants (required in section 9.4.3 and 9.4.6) does not need to be conducted as direct and indirect exposure of the soil compartment is unlikely. The substance has no potential to adsorb to soil is degradable and is not persistent. According to the available information about production and processing ofmethenamine, and the uses identified, direct releases ofmethenamineto the terrestrial compartment can practically be excluded. An input via sludge application on agricultural soil is considered to be negligible, too, asmethenamineis degraded rapidly and does not adsorb to the sewage sludge to a significant extent. Consequently, an exposure of soil only might occur by atmospheric deposition. As shown in IUCLID5 section 5.1.1 the substance is degraded quickly in the air and transport via air is unlikely. Hence, this pathway of exposing the terrestrial compartment is negligible, too. It can be concluded for all usesconsidered,that the risk for the terrestrial compartment is low and no further information and/or testing is needed.