{"version":"1.0","type":"rich","title":"Fork of AQI Data in America by county","description":"This choropleth map of U.S. counties uses a quantile color scale to display air quality index (AQI) values, with gray indicating missing data. A histogram below the map shows monthly mean AQI values over time. Users can brush over the histogram to filter the map to counties within a selected time range. The visualization combines React with D3 APIs including geoAlbers, geoPath, scaleQuantile, brushX, and histogram, rendering to SVG. Data is loaded from CSV and TopoJSON sources.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/6edf46e23d1046059ff8df93e877efaf?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}