Chloroacetic acids in environmental processes

0024242 - ÚEB 2006 RIV DE eng J - Journal Article
Matucha, Miroslav - Gryndler, Milan - Forczek, Sándor - Uhlířová, H. - Fuksová, Květoslava - Schröder, P.
Chloroacetic acids in environmental processes.
[Chloroacetic acids in environmental processes.]
Environmental Chemistry Letters. Roč. 1, - (2003), s. 127-130. ISSN 1610-3653. E-ISSN 1610-3661
R&D Projects: GA ČR GA522/02/0874
Institutional research plan: CEZ:AV0Z5038910
Keywords : Dichloroacetic acid * Trichloroacetic acid * Microbial degradation
Subject RIV: GK - Forestry

The fate of chloroacetic acids (CAA) in forest soils was studied using radio-indicator methods. We showed that chloroacetic acids are both microbially degraded and simultaneously formed by chloroperoxidase-mediated chlorination of acetic and humic acids. The degree of biodegradation of chloroacetic acids in soil depends on their concentration. Dichloroacetic acid (DCA) is degraded faster than trichloroacetic acid (TCA). Chlorination of acetic acid led to a fast formation of dichloroacetic acid, whereas chlorination of humic acids gave rise to trichloroacetic acid. Both processes lead to a steady state in soil, participate in the chlorine cycle and possibly also in decomposition of organic matter in forest ecosystems.

Chloroacetic acids in environmental processes.
Permanent Link: http://hdl.handle.net/11104/0114820