YPIE Scientist: Roberto Lopez

Research: Assessing Microplastic Pollution in the Hudson River Before and After CSO-Linked Rainfall Events

Mentor: Ryan Palmer

Research Location: Bezcak

Abstract:

This study investigates the impact of combined sewer overflow (CSO)-linked rainfall

events on microplastic concentrations in the Hudson River at the Yonkers waterfront.

Microplastics are a growing environmental concern because they can harm aquatic ecosystems and enter the food chain through polluted waterways. Previous studies have shown that stormwater runoff and CSOs contribute significantly to pollution in urban rivers, especially after rainfall events. Water samples will be collected from the Hudson River near the Center for the Urban River at Beczak during both post-rainfall and dry-weather conditions. Samples will be filtered, examined under a dissecting microscope, and categorized based on type and color of microplastics. Environmental conditions such as temperature, tide level, and water flow will also be recorded. It is expected that microplastic concentrations will increase after rainfall due to CSO activity and stormwater runoff carrying plastic waste into the river. The study aims to improve understanding of how urban infrastructure contributes to microplastic pollution and may support stronger stormwater management and pollution prevention policies in the Hudson River region.

About this scientist: Roberto Lopez at Yonkers High School who is currently pursuing the IB Diploma. In the summer and fall, he will attend University of Rochester with a double major of Environmental Studies and Political Science. He has a strong interest in preserving the environment and making policies to do so. He enjoys doing work in the environment as well, advocating for it when he can.

Presentation Slides