Presentation Title

Analysis of Chemical Markers in Raw Wastewater, Contaminated Soil Flushes, and Brackish Groundwater

Faculty Mentor

Natalie Mladenov

Start Date

23-11-2019 10:00 AM

End Date

23-11-2019 10:45 AM

Location

171

Session

poster 3

Type of Presentation

Poster

Subject Area

engineering_computer_science

Abstract

Analysis of Chemical Markers in Raw Wastewater, Contaminated Soil Flushes, and Brackish Groundwater

Author: Jeremy Monroe

Co-authors: Natalie Mladenov, Federick Pinongcos

Recent studies have identified caffeine and sucralose (C&S) as indicator compounds of anthropogenic, or human, contamination in water. Caffeine, ranked as the number one drug worldwide, and sucralose, used in artificial sweeteners, are not found naturally in most environments but are introduced into waterways through human activity. Both compounds contain several physical and chemical properties that, even with conventional water treatment methods, prevent them from breaking down in aquatic environments and allow for persistence in nature. Concentrations vary based on location and are heavily affected by increased levels of urbanization. Due to their persistence in the environment, C&S can be found at different concentrations in generally every river, stream, lake, and aquifer touched by human interference. In this study, collected samples will undergo solid-phase extraction to prepare them for LC/MS/MS analysis. Results will allow for a better understanding of anthropogenic contamination found in groundwater, wastewater, and urban runoff in San Diego county and help determine their individual contributions of C&S to the San Diego River.

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Nov 23rd, 10:00 AM Nov 23rd, 10:45 AM

Analysis of Chemical Markers in Raw Wastewater, Contaminated Soil Flushes, and Brackish Groundwater

171

Analysis of Chemical Markers in Raw Wastewater, Contaminated Soil Flushes, and Brackish Groundwater

Author: Jeremy Monroe

Co-authors: Natalie Mladenov, Federick Pinongcos

Recent studies have identified caffeine and sucralose (C&S) as indicator compounds of anthropogenic, or human, contamination in water. Caffeine, ranked as the number one drug worldwide, and sucralose, used in artificial sweeteners, are not found naturally in most environments but are introduced into waterways through human activity. Both compounds contain several physical and chemical properties that, even with conventional water treatment methods, prevent them from breaking down in aquatic environments and allow for persistence in nature. Concentrations vary based on location and are heavily affected by increased levels of urbanization. Due to their persistence in the environment, C&S can be found at different concentrations in generally every river, stream, lake, and aquifer touched by human interference. In this study, collected samples will undergo solid-phase extraction to prepare them for LC/MS/MS analysis. Results will allow for a better understanding of anthropogenic contamination found in groundwater, wastewater, and urban runoff in San Diego county and help determine their individual contributions of C&S to the San Diego River.