Student Research Reports

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Microplastic pollution poses a growing threat to freshwater ecosystems, yet its relationship with key water quality parameters remains poorly understood. This study investigates the correlation between microplastic concentrations and hydrosphere protocols, including pH, turbidity, total solids, conductivity, and temperature in the Rouge River. The researchers collected and analyzed water samples from two sites: Parr Wayside, an urban recreational area, and Rouge River Wallaceville, a downstream location with residential and agricultural influence. The study aimed to determine whether seasonal variations and precipitation patterns affect microplastic levels and how microplastics interact with water quality factors. The researchers hypothesized that increased rainfall would not significantly impact microplastic concentrations and that higher levels of microplastics would correspond with increased turbidity and total solids while showing no significant relationship with pH or temperature. Samples were collected over several months and analyzed using standard hydrosphere testing protocols, microplastic filtration, and microscopy. Results revealed a positive correlation between microplastic concentrations and both turbidity and total solids, suggesting that higher suspended particle content is associated with increased microplastic pollution. Conversely, electrical conductivity and air and water temperatures showed an inverse relationship with microplastics, while pH exhibited no clear correlation. These findings indicate that microplastic contamination may be influenced more by particulate matter in or temperature changes. This research contributes valuable data to local environmental initiatives, informing conservation efforts and emphasizing the need for continued monitoring. The study underscores the importance of mitigating plastic pollution to protect freshwater ecosystems.