Registration Dossier

Diss Factsheets

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Abiotic Degradation:

In the atmosphere DMF is expected to be indirectly photodegraded with a half life of 2 hours (GDCh, 1991). Photodegradation in water occurs with a half life of 50 days (Haag et al., 1991). Hydrolysis is not expected under environmental conditions.

Biodegradation:

In laboratory tests ready biodegradability was demonstrated for DMF (BASF, 1989). DMF also degraded completely in river water within 6 days (Dojlido, 1979). An inherent biodegradation study (following OECD 302-B test design) confirmed the rapid elimination of DMF from water (BASF, 1976).

Stability:

In the atmosphere DMF is expected to be indirectly photodegraded with a half-life of 2 hours (CDCh, 1991).

Photodegradation in water occurs with a half-life of 50 days (Haag et.al., 1991). Hydrolysis is not expected under environmental conditions.

Bioaccumulation:

Does not significantly accumulate in organisms.

Bioaccumulation in aquatic species: fish (OECD Guideline 305 C, GLP compliance not specified): BCF range of 0.3 -1.2 L/kg indicates a very low bioaccumulation potential.

Transport and Distribution:

QSAR using KOCWIN, v2.00 (which is part of the EPI-Win software package (Version 4.11) of US-EPA): Koc = 1, log Koc = 0

QSAR using HENRYWIN v3.20 (which is part of EPI Suite v4.11): H = 0.00748 Pa m³/mol at 25 °C.

In air DMF shows a distribution level of 11.5% and in water 88.5 %. Based on the calculation it is not expected to appear in soil, sediments and biota.

Additional information