Microplastics—pieces of plastic too small to be seen with the naked eye—are being found throughout the environment. This workshop will bring together the environmental health community to explore how emerging technologies and research strategies may be leveraged to address important environmental health questions about microplastics. Participants will explore methods to detect and quantify microplastics in food and the environment, delve into research on the effects of microplastics on the health of humans and wildlife, and discuss ways to reduce microplastics in the environment.