Vermont is one of 25 states and one city funded by the U.S. Centers for Disease Control and Prevention to develop a state and national tracking network of environmental and health data for the public, policy makers, researchers, and agencies. The VT Environmental Public Health Tracking portal provides these data in maps, charts, and tables as a part of the State's continuing effort to help Vermonters better understand the relationship between their environment and their health. Topics include air quality, climate change, public and private drinking water, asthma, birth defects, cancer, carbon monoxide, heart attack, childhood lead poisoning, reproductive health, blue-green algae, and radon.