On Saturday, June 7th students from schools across New York City gathered at CUNY Law School in Long Island City to present their findings regarding air pollution at the 2019 CELF Student Symposium, hosted by the Children’s Environmental Literacy Foundation together with partners. The CELF Citizen Science: Connecting Classroom to Community is a semester-long program that engages educators and students in project-based STEM learning outside of the classroom. The project was funded for Year 2 through the New York State Pollution Prevention Institute (NYS P2I) Community Grant Award which allowed for CELF, CUNY Center for Urban Environmental Reform, NYC Department of Education, NYC Department of Health and Mental Hygiene, NY Hall of Science, and the Mount Sinai Transdisciplinary Center on Early Environmental Exposures to engage NYC public school students as environmental health researchers to collect and analyze air pollution data from their neighborhoods. Using this data, students identified sources of air pollution, recognized connections to human behaviors, developed prevention and remediation plans for their communities, and shared their findings with peers and policymakers.