Acute toxicity of water-accommodated fraction and chemically enhanced WAF of bunker C oil and dispersant to a microalga Tetraselmis tetrathele

This study assessed the toxicity of water-accommodated fraction (WAF) and chemically enhanced WAF (CEWAF) of bunker C oil and dispersant (DISP) to a microalga, Tetraselmis tetrathele. The 72-h median effective concentration (72-h EC₅₀) of CEWAF and DISP were determined at 3.30 % and 2.40 %, respectively. The no observed effect concentration (NOEC) of CEWAF to T. tetrathele was at 2.0 % and lowest observed effect concentration (LOEC) was at 3.0 % while NOEC and LOEC of DISP to T. tetrathele were determined at 1.0 % and 2.0 %, respectively. The addition of dispersant to oil increased the amount of total PAH present in the CEWAF test solutions. DISP alone was highly toxic, and the toxicity of CEWAF was primarily caused by the presence of dispersant.

URI

http://hdl.handle.net/10862/2955

Citation

Santander-Avanceña, S. S., Sadaba, R. B., Taberna Jr., H. S., Tayo, G. T., & Koyama, J. (2016). Acute toxicity of water-accommodated fraction and chemically enhanced WAF of bunker C oil and dispersant to a microalga Tetraselmis tetrathele. Bulletin of Environmental Contamination and Toxicology, 96(1), 31-35. https://doi.org/10.1007/s00128-015-1696-0

Publisher

Springer Verlag

Subject

Dispersants; Water-accommodated fraction (WAF); Chemically enhanced WAF (CEWAF); Acute toxicity test; Tetraselmis tetrathele

Type

Article

DOI

10.1007/s00128-015-1696-0

ISSN

0007-4861; 1432-0800

Acknowledgment/Sponsorship

This study was funded by the Japanese Society for the Promotion of Science-Asian CORE Program, Department of Science and Technology–Student Science Institute and the Research Institute for Humanity and Nature and the UPV-Oil Spill Response Program 07-03 Project.

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