Effect of triclosan and its photolysis products on marine bacterium V. fischeri and freshwater alga R. subcapitata

Eren Gorenoglu, Egemen Aydin, Emel Topuz, Elif Pehlivanoglu-Mantas*

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6 Atıf (Scopus)

Özet

The use of antibacterial agents in consumer products may lead to adverse effects in waters receiving treated wastewater. Triclosan is one of the antibacterial agents used widely in the world and its high usage leads to relatively high concentrations in wastewater effluents. In this study, the probable effect of triclosan in receiving waters was assessed using different organisms. The EC50 values were 668 ± 80 μg/L and 7.8 ± 0.1 μg/L, for Vibrio fischeri and Raphidocelis subcapitata, respectively, indicating the higher sensitivity of the alga. The toxicity of triclosan upon exposure to UV light decreased for both species, as suggested by the increase in EC50 values (1300 ± 50 μg/L and 8.7 ± 0.6 μg/L for V. fischeri and R. subcapitata, respectively). The effect of photolysis on toxicity reduction was higher for V. fischeri and the EC50 values were similar for direct and indirect photolysis. LC-MS/MS analysis of samples with and without UV exposure suggested a decrease in triclosan concentration as well as formation of photolysis byproducts upon photolysis.

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)218-224
Sayfa sayısı7
DergiJournal of Environmental Management
Hacim211
DOI'lar
Yayın durumuYayınlandı - 1 Nis 2018

Bibliyografik not

Publisher Copyright:
© 2018 Elsevier Ltd

Finansman

This study was funded by Istanbul Technical University Research Fund , Project # 34164 .

FinansörlerFinansör numarası
Istanbul Teknik Üniversitesi34164

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