Description
This site hosts an interactive R Shiny application that explores the relationship between asthma and nitrogen oxides (NOx) pollution. Users can view and interact with charts or maps to see how asthma outcomes vary with NOx levels across locations or over time, making it easier to visualize potential links between traffic‑related air pollution and respiratory health.
Questions this resource can help answer
- What are the number of asthma cases per year that are a result of nitrogen dioxide (NO2) pollution?
- What are the other sources of nitrogen oxides in a county?
How do I use this resource?
Geographic Selection: Select State, then geographic level (State, County, Congressional District, State Senate District, State House District, or MSA), then area. Area is left blank for State level
Vehicle Emissions Selection: Select one vehicle pollutant (PM10,PM2.5,NOx,NO2,or, CO2) and select a vehicle type (HDV-Heavy Duty Vehicles, MDV-Medium Duty Vehicles, LDV-Low Duty Vehicles).
Pro tips
Resource information
Technical specifications
The NO2 attributable asthma estimates are based on a global NO2 model incorporating satellite observations, government monitoring, and information on land use. The model may not capture all local pollution hotspots, for example non-roadway sources or atypical traffic patterns.