Date of Award
College of Engineering and Computer Sciences
Type of Degree
Dr. Scott Simonton, Committee Chairperson
Dr. Mindy Yeager-Armstead, Committee Member
James Hemme, Committee Member
Aquatic toxicology evaluates the impact of pollution on freshwater and marine biota. Polycyclic aromatic hydrocarbons (PAHs) are one class of chemicals prevalent in the environment that impair aquatic organisms. This study examined the effect of contaminated surface water and sediments from a former wood treatment facility on four aquatic species: Pimephales promelas (fathead minnow), Ceriodaphnia dubia (water flea), Chironomus dilutus (midge), and Daphnia magna (water flea). The findings showed that sediment contamination had no significant effect on survival and growth of C. dilutus or on survival of D. magna. Surface water contamination began to have a significant effect on C. dubia survival at the highest concentration; however, without the observation of a dose-response relationship at lower concentrations, causation cannot be established. Finally, results indicated that ambient conditions within the Little Scioto River, rather than site contamination, significantly inhibited the growth of P. promelas larvae.
Water -- Pollution -- Toxicology.
Creosote -- Environmental aspects.
Polycyclic aromatic hydrocarbons.
Morgan, Leah Suzanne, "Assessing ecotoxicity of surface water and sediment in the Little Scioto River" (2023). Theses, Dissertations and Capstones. 1830.