Sie befinden Sich nicht im Netzwerk der Universität Paderborn. Der Zugriff auf elektronische Ressourcen ist gegebenenfalls nur via VPN oder Shibboleth (DFN-AAI) möglich. mehr Informationen...
The pH-dependent toxicity of triclosan to five aquatic organisms (Daphnia magna, Photobacterium phosphoreum, Danio rerio, Limnodrilus hoffmeisteri, and Carassius auratus)
Ist Teil von
Environmental science and pollution research international, 2018-04, Vol.25 (10), p.9636-9646
Ort / Verlag
Berlin/Heidelberg: Springer Berlin Heidelberg
Erscheinungsjahr
2018
Link zum Volltext
Quelle
SpringerLink (Online service)
Beschreibungen/Notizen
Triclosan (TCS) is an antibacterial and antifungal agent widely used in personal care products, and it has been frequently detected in the aquatic environment. In the present study, the acute toxicity of TCS to
Daphnia magna
,
Photobacterium phosphoreum
,
Danio rerio
, and
Limnodrilus hoffmeisteri
was assessed under different pH conditions. Generally, TCS was more toxic to the four aquatic organisms in acidic medium. The LC
50
values for
D. magna
and
D. rerio
were smaller among the selected species, suggesting that
D. magna
and
D. rerio
were more sensitive to TCS. In addition, the oxidative stress-inducing potential of TCS was evaluated in
Carassius auratus
at three pH values. Changes of superoxide dismutase (SOD) and catalase (CAT) activity, glutathione (GSH) level, and malondialdehyde (MDA) content were commonly observed in all TCS exposure groups, indicating the occurrence of oxidative stress in the liver of
C. auratus
. The integrated biomarker response (IBR) index revealed that a high concentration of TCS induced great oxidative stress in goldfish under acidic condition. This work supplements the presently available data on the toxicity data of TCS, which would provide some useful information for the environmental risk assessment of this compound.