Registration Dossier

Administrative data

Endpoint:
adsorption / desorption, other
Data waiving:
study technically not feasible
Justification for data waiving:
the study does not need to be conducted because the substance and its relevant degradation products decompose rapidly
other:
Justification for type of information:
Citrates form naturally in biological systems and will ultimately mineralise. Citric acid is readily biodegradable.

The behaviour in soil of chromium will depend on the counter ions present. This cannot be predicted from laboratory screening studies.

Chromium(III) in soil is mostly present as insoluble carbonate and oxide of chromium(III); therefore, it will not be mobile in soil. The solubility of chromium(III) in soil and its mobility may increase due to the formation of soluble complexes with organic matter in soil, with a lower soil pH potentially facilitating complexation (Avudainayagam et al. 2003).

Chromium has a low mobility for translocation from roots to the aboveground parts of plants (Calder 1988; Cary 1982; EPA 1984a, 1985a; King 1988; Stackhouse and Benson 1989).

Data source

Materials and methods

Results and discussion

Applicant's summary and conclusion