The Trees and Health App allows you to select among 13 cities and view a neighborhood-by-neighborhood map of tree cover, urban heat island effect, and demographics to prioritize locations where new trees could contribute the most to public health outcomes.

Tree Hugger reports a new urban tree mapping tool called Trees and Health App developed by researchers at Portland State University and funded by the U.S. Forest Service.

The app allows you to view the tree coverage of a number of cities: Albuquerque; Atlanta; Baltimore; Cincinnati; Denver; Houston; Minneapolis; Orlando; Phoenix; Pittsburgh; Portland, Ore.; Sacramento; and Tampa.

The app offers three tabs:
1) The "Assess" tab allows you to explore the geography of air quality vulnerability from multiple perspectives. Within the tab are 6 neighborhood characteristics: percentage of tree canopy cover; traffic-related air quality; urban heat island index; percentage of residents under age 18; percentage of residents over age 65.

2) The "Prioritize" tab allows you to find the places that could benefit most from targeted tree planting efforts. This tab has 6 "vulnerability" component values.

3) The "Plan" tab allows you to set a goal for either a canopy cover target percentage, or a percentage increase above the current canopy level. The "approximate trees to reach goal" box reports the estimated number of mature trees needed to meet your goal.