Effects of dissolved organic matter (DOM) on the bioconcentration of organic chemicals in aquatic organisms--a review.
Chemosphere
; 37(7): 1335-62, 1998 Sep.
Article
em En
| MEDLINE
| ID: mdl-9734324
ABSTRACT
Current knowledge on the effects of dissolved organic matter (DOM) on the bioconcentration of organic chemicals in aquatic animals (water fleas, mussels, amphipods and fish) is summarized. A graphical representation of the available data gives an overview of the magnitude of the observed effects. Most of the studies have shown decreases in bioconcentration in the presence of DOM (2 to 98% relative to DOM-free controls). However, at low DOM levels, up to 10 mg/L, also enhancements of bioconcentration due to DOM, ranging from 2 to 303% have been reported. Generally, the change in BCFW (Bioconcentration factor on a wet weight basis) per mg/L DOC was most pronounced at low levels of DOC. The data also show that DOM from different sources with different characteristics and quality can lead to substantial variations in the bioconcentration of organic compounds at comparable levels of DOC. While decreases in bioconcentration have generally been attributed to a lack of bioavailability of DOM-bound chemical, no mechanisms have been proposed to explain increased uptake of xenobiotics caused by DOM.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Compostos Orgânicos
/
Bivalves
/
Daphnia
/
Peixes
/
Água Doce
Limite:
Animals
Idioma:
En
Revista:
Chemosphere
Ano de publicação:
1998
Tipo de documento:
Article
País de afiliação:
Alemanha