Microplastics are pervasive and dangerous pollutants that can be found all over the world. Defined as plastics with a diameter less than 5 millimeters in size, they strongly affect marine ecosystems and aquatic life, as well as human health and well-being. Studies have shown that microplastics can be disease vectors, contribute to climate change, and affect the mobility of other pollutions in soil – a characteristic that has wide and dangerous implications for agriculture and the Earth’s biota in both terrestrial and marine habitats globally. Coastal and island communities are uniquely vulnerable to the impacts of microplastics. This project focuses on the human dimensions of microplastics on the island of Nantucket, Massachusetts, and examines public perceptions and knowledge of microplastics regarding environmental and health impacts. To gather this data, online and in-person surveys are distributed to Nantucket residents. Individuals are asked about their knowledge and perceptions of microplastics. This includes the impacts of microplastics, sources of microplastic generation, and the distribution of responsibility regarding limiting the use of disposable plastics. Findings may be used to develop educational materials and policy approaches for public health initiatives and efforts by furthering understanding of the public's perceptions of microplastics.