Year: 2025, 2025
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): Blanchard, Dane Alexander, Thesis advisor (ths): Aherne, Julian, Thesis advisor (ths): Gordon, Mark, Degree committee member (dgc): Aherne, Julian, Degree committee member (dgc): Gordon, Mark, Degree committee member (dgc): Dang, Huy, Degree committee member (dgc): Koprivnjak, Jean-François, Degree committee member (dgc): Mangal, Vaughn, Degree granting institution (dgg): Trent University Abstract: <p>Chromophoric dissolved organic matter (CDOM), a chemically diverse family of organic compounds defined by their ability to absorb ultraviolet and visible light, is a critical constituent of numerous environmental systems, including freshwater lakes. Industrial operations in the Athabasca Oil Sands Region (AOSR, Alberta, Canada) are major sources of acidic inorganic gases and organic… more Year: 2025, 2025
Member of: Trent University Graduate Thesis Collection
Abstract: <p>This work presents a new online method using gas chromatography coupled to the multicollector-inductively coupled plasma-mass spectrometer for methylmercury (MMHg) isotope ratio measurement. An extraction method using distillation was developed that effectively extracted MMHg from up to 5 grams of sediment, imparting no isotope fractionation on MMHg during extraction. Isotope ratios from… more Year: 2025, 2025
Member of: Trent University Graduate Thesis Collection
Abstract: <p>Agriculture may result in soil disturbances, including contamination by rare earth elements (REE) and trace elements (TEs) from agricultural inputs (e.g. fertilizers, pesticides). Regulations concerning agricultural inputs currently do not consider TE background concentrations, concurrent use of inputs, and emerging contaminants. Therefore, they may not sufficiently protect against TE… more
